psi towing travel trailer

How to Choose the Right Tire Pressure for Towing

If you are towing a trailer or camper, it is critically important to have the right tire pressure for towing. This will ensure that your vehicle is safe to tow and that you do not damage your equipment.

The best tire pressure for towing is between 35 and 65 psi, depending on your vehicle and the weight of your trailer.

Obviously, this is a pretty wide range! Don’t worry, we’ll help you narrow it down.

In this guide, we will discuss the different things you need to consider when choosing the correct tire pressure for your adventure.

We will also provide some tips on how to adjust your pressure depending on the weight of your load for the best results.

The Right Tire Pressure For Towing

As we covered earlier, there’s a broad range (typically between 35 and 65 psi) for the best tire pressure for towing.

That’s a big range, and it comes down to a few different factors that we’ll cover now.

Here’s the secret. It all depends on what type of tire you have, and the max pressure your tire can handle.

Type Of Tire

There are two main types of tires seen on tow vehicles: P-Metric tires and LT tires.

P-Metric Tires

P-Metric tires are passenger vehicle tires, meant for use on cars, minivans, SUVs, or light-duty trucks.

If your tire doesn’t have a letter in front of it on the sidewall, it is a P-Metric tire.

LT tires (short for light truck tires), which are for heavy loads, including off-roading and towing.

They have reinforced sidewalls and treads that protect the tire from damage under heavy loads.

So why does this matter?

Each tire behaves differently and has different idea towing pressure limits, so it’s important to understand which tire you have before we continue.

Max Pressure

Before we can figure out the correct tire pressure for towing, we’ll also need to know the max pressure of your tire.

You can find this on the sidewall of your tire, usually indicated as a number in parentheses followed by “psi” or “psi max”.

So for example if we had a tire with a reading of 44 psi max, that tells you the absolute maximum tire pressure it can handle is 44 psi.

Always Use Cold Inflation Pressure Measurements

All specifications from tire and vehicle manufacturers are based off of cold pressure measurement, aka cold psi.

This means the inflation pressure of tires before the car or trailer are driven and the tires are “warmed up”.

Why does this matter?

Well, “hot” or warmed up tire pressures average about 5 psi higher than when checked if cold, throwing everything out of balance.

What’s more, your psi will lower as the tires “cool down”, leaving you with the wrong pressure in your tires for towing.

The Best Tire Pressure For Towing With P Tires

You should always set your tire pressure to the vehicle manufacturer’s specifications when towing with P-tires .

There’s no exception.

Even if your passenger tires show a higher max load, it will not add towing capacity or additional stability when towing.

The vehicle manufacturer’s max psi recommendation is there for a reason: to provide you with a guideline of tire pressure so that your vehicle’s tires can best handle the maximum capacity of your vehicle, including when towing.

Again, the best tire pressure for towing with passenger tires is the vehicle’s manufacturer specifications.

The Best Tire Pressure For Towing With LT Tires

Always set your tire pressure to the max psi rating just above your max load when towing with LT tires, while staying as close as possible to the vehicle manufacturer’s specifications.

Now if you haven’t calculated this before, it can be a little confusing.

Don’t worry! We’ll walk you through it.

How To Calculate Max Load For LT Tires

There’s two ways to do this: the easy way and the hard way (we’ll let you decide which to use).

The Easy Way

The easy way to calculate the max load for LT tires is to refer to the air pressure & load chart for your tire rating.

Take for example this air pressure and load chart for a LT 245 / 70 R17 tire:

Tire Load Limit Chart

As you can see, the tire pressure of 45 equals a max load limit of 2,010.

Let’s say that you’re hauling a trailer that weighs 8,500 lbs, and the vehicle manufacturer’s specifications calls for 48 psi.

If this is the case, then 45 psi won’t cut it.

At 45 psi, those tires would have a combined load rating of 2,010 x 4, or 8,040 lbs, which isn’t enough.

Additionally, your vehicle requires at least 48 psi, in which case 45 psi isn’t enough either.

You’d then want to increase the tire air pressure for towing to the next psi rating up on the chart, which is 50.

That’d give you a max load rating of 2,205 lbs per tire or a total of 8,820 lbs, putting you in the clear, and just barely above the vehicle manufacturer’s psi specification.

The Hard Way

The hard way is by doing math:

Tire Weight / Tire Pressure = Load Capacity Pounds per PSI

This is reliable, but it requires that you know the weight of your tire.

If you’re going to go to all that trouble, just look up the air pressure and load chart for your tire and save yourself the calculator work!

The Best Trailer Tire Pressure For Towing

Just like with LT tires, trailer tires should always be inflated to the max load psi .

You’ll want to refer to the air pressure & load chart for the trailer tires you have, or do the same math we outlined above for calculating the best tire pressure for towing with LT tires.

The combined load capacity of all the trailer tires must be equal or greater than the Gross Vehicle Weight (GVW) rating of the trailer’s axles.

You can exceed this by about 15-20%.

The main benefit of doing that is that most trail tires run cooler at max tire pressure, reducing wear and the chances of a blowout.

If your trailer tires are wearing in the centers, you can reduce the tire pressure slightly, but never go below the max load psi requirement .

The majority of trailer tire failure incidents are due to too low of psi, or under-inflation.

Frequently Asked Questions

For passenger tires, always use the Vehicle Manufacturer’s psi specification. For LT tires, you can increase tire pressure when towing to ensure that you are meeting or exceeding the maximum load rating required of your tires while still staying as close to the Vehicle Manufacturer’s psi specification as possible.

Always test your tire pressure “cold” (before driving or towing).  This applies to both the tow vehicle’s tires and the trailer tires. Check them throughout your trip as necessary, keeping an eye on the tire pressure and making sure it’s within the proper range.

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What Should Be The Tire Pressure When Towing A Travel Trailer?

Many people who are new to towing often think about tire pressure when towing a travel trailer. Let us look in detail at the required tire pressure when towing a travel trailer.

If you are new to towing or have just bought new tires, you might have wondered about the tire pressure your vehicle needs to have. Many people think that the tire pressure of the vehicles depends on how heavy the load is. 

Every tow trailer’s tire pressure has to be monitored regularly. It is necessary because if the tires are not properly inflated, they will blow out and cause major problems while towing. 

When the tire is not inflated at the right pressure, the trailer or RV may shake if you are moving too quickly. It will affect the overall towing experience and cause problems for the tow vehicle. So it is important for smooth and safe driving to have the correct tire pressure while towing. 

Depending on the trailer weight, the ideal tire pressure is 40 PSI to 65 PSI. When you adjust the tire pressure, make sure you can balance and tow the weight of the trailer properly. 

In this article, let us look at how to find the right tire pressure tire for different trailers and other related questions.

How To Find The Right Tire Pressure For RV Tires?

Many RV manufacturers stick to the load rating chart. The load rating chart specifies the trailer weight and the wheel’s specifications that show how much tire pressure is required at the specific load weight. 

To find the right tire pressure, it is important to weigh every axle. This weight is then divided by the total number of tires in the trailer. If there is some extra weight of the things being carried in the trailer, add 10% more to it. The weight that you get this way will give you the right tire pressure on the table provided by the manufacturer. 

Make sure the weight is specified at each tire position to get the right tire pressure. There can be an imbalance when the weight distribution is not proper or while packing. So the load weight will help know the correct tire pressure at each side. 

You might like to read: Where Are Hercules Trailer Tires Made?

Some Basic Information About RV Tire Inflation

• There are different types of RV tires available nowadays that fit into the width and diameter of the wheels. The tire pressure of different wheels depends on their weight ratio. 
• Make sure the load capacity of each wheel is similar to or more than the maximum weight load. Just keep the weight of the RV well-balanced, so the weight of the tires and load are proportional. 
• When the weight of the load is not properly balanced, make sure the tires of each side are well-inflated. You may need to measure the weight of each load, including the fuel, water, and other supplies that determine the total weight distribution.
• When your RV is fully loaded, you need to inflate the tires to their maximum pressure. It is not right to lower the tire pressure just to have a soft ride, as it is dangerous. You can use a tire pressure gauge to find the pressure.

Do I Need To Increase The Pressure While Towing A Trailer?

Yes, you need to inflate your tires when towing with a heavy load. 

If the tires are not properly inflated and give out due to heavy load weight while pulling, it may result in blowouts. So it is essential to make sure your trailer or RV is inflated with the right pressure before towing. Over-inflating and under-inflating can both lead to dangerous situations with towing. 

While towing a trailer you may inflate your tires to 75 PSI or maximum PSI. After towing, you can decrease the tire PSI in the range of 55 to 60. This is the comfortable pressure when you do not need to tow anything. 

Else you might have to replace your tires, or they may burst out while traveling. Some people inflate and deflate the tires at different PSI in the front and rear parts. The PSI depends on the towing weight load and which side the weight is located on. 

You might like to read: Where Are Carlisle Trailer Tires Made?

Can I Inflate Trailer Tires To Its Maximum Tire Pressure?

Yes, but only when you are towing. Afterwards, you should reduce the pressure back to normal.

You must have seen specified PSI there on your tires. The listed PSI is the highest recommended pressure by your manufacturer. Anything more than the specified tire pressure is dangerous and can fail while riding. 

But can you inflate your tires to their maximum PSI all the time? The answer is no. It is ideal to inflate the tires to their maximum PSI when you need to tow a heavy load that needs more support. If you inflate more than the maximum PSI limit, it can strain the tires.

You can only inflate tires with maximum PSI when it’s cold outside as it will cause less heat and take up the full load of the tires. Thus resulting in better fuel mileage and longevity. Even if you are keeping your trailer in a very cold space, make sure to inflate it to maximum PSI and not more than that.

RAM 1500 Tire Pressure When Towing

The Ram 1500 is a truck that picks up load and has around 19 trims and 12 different tire sizes. 

The recommended tire pressure for Ram 1500 for the 2011 to 2021 models is 35 PSI to 80 PSI. The tire pressure range depends on the Ram model year, tire size, and model trim. 

For example, for the 2021 model, the recommended tire pressure for front tires ranges between 36 to 55 PSI and 36 to 45 PSI for rear tires.

Towing Features

The RAM 1500 has some advanced towing technology that makes towing easy. Let us look at some of its features below.

• Towing Power. The RAM 1500 is well-built to carry heavy loads with ease. It comes with five different powerful engine options. It includes a 5.7 ltr V8 engine and torque hybrid system to generate 395 horsepower. It has a towing capacity of around 12,750 lbs.
• 360° Camera View. Having a 360° camera makes it easy to tow loads. It makes it easy to have a look at the load.
• Reverse Steering . Many times, you may forget which side to steer while reversing. With the reverse steering control, it is easy to reverse the steering knob that controls your truck’s steering wheel. 

You might like to read: Where Is The Converter On My 5th Wheel?

Silverado 1500 Tire Pressure When towing

The Silverado 1500 can tow larger trailers or boats with ease. It comes with some innovative features and a large towing capacity. This trailer is ideal for both new drivers and experts. This pickup truck comes with 13 trims and 17 tire sets.

The recommended tire pressure for Silverado 1500 model 2005 to 2021 ranges from 30 PSI to 45 PSI. The tire pressure depends on the model year, trim, and tire size for better performance, fuel efficiency, and safety.

• Comes With 15 Camera Views. This pick has around 15 camera views, thus making the towing work easy. So whether you are driving or parking the trailer, the cameras help move the trailer easily.
• Advanced Trailering . This advanced trailer is equipped with an in-vehicle trailering application and lighting diagnostics and monitors tire pressure. It also offers many more features making it easy to tow for a longer time. It includes hill start assistance, auto-grade brakes, and sways control options.

You might like to read: Trailer Lights Go Off When I Hit The Brakes

How Do You Find The Recommended Tire Pressure For Silverado 1500?

You can look at the owner’s manual or tire placard placed in the driver’s door, trunk lid, fuel door, or console. To check the tire pressure of your trailer, you need first to know the recommended tire pressure of both front and back tires. You can use the tire pressure gauge to know the tire pressure of each tire. 

You will have to adjust the tire pressure to the required level. If the tire is overinflated, you will have to remove some air out; else, the tire will burst out. Keep a check on tire pressure and make sure all the sides of the tires are properly inflated.

Tire Pressure When Towing A Fifth Wheel

You can check the correct tire pressure in the vehicle’s placard, owner’s manual, and vehicle’s certification label. When towing a fifth wheel, the recommended tire pressure is 60 to 65 PSI, and when it is cold, the recommended pressure is 80 PSI in some vehicles.

Some Tips On Maintaining Tire Pressure

Inspect the tire pressure regularly.

Make sure to keep a check on the tire pressure regularly, especially while traveling. This will help find out if there is any wear and tear that can cause more damage to the tires. 

Wash The Tires Regularly

You should wash your tires with a brush and water or a solvent. Please avoid using any petroleum-based products as they can damage the tires prematurely.

Cover Your Trailer Tires When Not In Use

If you do not use your trailer regularly, keep the tires covered to extend their life. It will help protect the tires from UV rays, which can degrade them.

You might like to read: What Load Range Tire For F250?

A Few Final Words

It is essential to monitor the tire pressure regularly while towing. This will help prevent the tire from blowouts and other related issues. Also, if the tire pressure is not correct, your trailer may vibrate or become shaky when you move at a higher speed. Keep the tire pressure at a recommended level depending on your trailer model for better performance and safety.

Thank you for reading so far, we hope we answered most of what you wanted to know. If not, just drop us a line in the comments and we will get back to you.

Related posts:

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• 6 Best Car Seat For Dodge Ram Quad Cab
• Where Are Trailer King Tires Made?
• Where Are Maxxis Trailer Tires Made?
• 7 Best Convertible Car Seat For Jeep Wrangler

Sean Mendez

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RV Tires & Accessories

Last updated on: February 4, 2022

How To Set the Correct Travel Trailer Tire Pressure

by Chris Coleman

www.rvtalk.net is reader supported. When you buy through links on our site, we may earn an affiliate commission.

Your RV tires read max. 50 psi and you have aired them up to 50 psi thinking that you have set them at the right inflation and pressure. But wait! Why does the trailer behind your vehicle suddenly feel very shaky and starts bouncing when heavy vehicles pass by? It happens because the travel trailer tire pressure  is incorrect. Maximum tire pressure does not mean that you have to inflate the tires at that pressure.

Finding the Correct Tire Pressure for Travel Trailer

Finding the right psi for your trailer, rv trailer tire pressure tips.

Maintaining the correct tire pressure is critical for ensuring road safety . Replacing a damaged or blown-out tire is costly and a bad tire can cause accidents on the road too. To slow out the wearing rate, you have to inflate them to correct psi.

The psi is specified to the tires depending on the weight carrying capacity of a travel trailer. Somewhere inside the vehicle, you will find a label mentioning the maximum psi. The label might be missing in some motorhomes. In that case, check the owner’s manual or contact the dealer to get the right information.

The tire’s sidewall displays ratings including the information regarding the tire pressure. If the tires come with the trailer, then the psi on the sidewall and inside the vehicle will be the same or have a slight difference.

What Is the Correct Travel Trailer Tire Pressure?

How do you know what is the correct camper tire pressure ? There is no definitive answer. Different travel trailers require different tire pressures. Plus, the psi ratings could be different based on the tire types.

What is the average recommended trailer tire pressure ? The tire pressure of most travel trailers remains between 40 and 65 psi. The ratings are for trailers that weigh somewhere from 1,500 lbs to 15,000 lbs. Remember that you don’t have to set the psi at this range. These are just average figures.

How do you choose the psi when the trailer tires say, suppose, max. psi 70lbs? Every tire manufacturer publishes a tire load and RV tire pressure chart . However, not everyone is skilled enough to calculate the precise inflation pressure from the load and psi tables.

The trailer’s front left corner is likely to have a Federal Certification Tag or label, displaying GVWR , GAWR, and tire inflation pressure. This pressure is determined according to the weight of the trailer. This is accurate if the vehicle does not have to carry any extra weight. But this is not possible as the vehicle will carry load and passengers.

The inflation pressure etched on the tire’s sidewall is the maximum amount of inflation for a tire given that it is carrying a full load. The sidewall also carries information about the tire’s max load range.

When the vehicle is not overloaded, the air pressure in the tire should be somewhere between the numbers mentioned on the Federal Certification Tag and the tire’s sidewall. You should never exceed the maximum pressure molded on the sidewall.

To maintain the ideal travel trailer tire pressure , you should ensure that both ends of the axle have the same inflation pressure.

In case if you are replacing an old tire, you should check whether the psi on the new tires is similar to the old ones. Also, the psi of the new tires should not be less than the number mentioned on the trailer’s tag. The tag’s pressure indicates the minimum that the tires should have to carry the trailer’s weight. Pressure lower than that the tires will not be capable of bearing that load. On the contrary, if the psi is higher than the old tires, the trailer may not ride ideally.

Following these tips will help you maintain the right travel trailer tire pressure  and avoid accidental over-inflation.

• Never set a tire pressure because another RVer or your neighbor has set it. Two trailers are always different and the tire pressure is related to the vehicle’s weight capacity and the current load.
• Always refer to the owner’s manual when you need to find out the recommended tire pressure and maximum weight capacity.
• Purchase a good-quality RV tire pressure monitoring system for real-time report/warning about tire pressure status.
• Don’t pull a motorhome with under-inflated tires. The air pressure should never be less than the amount needed for the bulk placed on the tires.
• The tires should never have less pressure than what’s mentioned on the certification tag. No matter how heavy a load you are carrying on the trailer, the pressure should be equal or more than the number mentioned on the tag.
• The psi mentioned on the sidewalls indicate the maximum tire pressure. Never inflate the tires more than that recommended pressure.

By understanding the right tire pressure for your travel trailer/RV, you can ensure the safety for your family in RV camping trips !

About Chris Coleman

Chris Coleman is an interesting travel blogger and outdoor photographer with a great sense of humor. He owns an RV Accessories shop in New York City so he has the knowledge necessary to provide thorough reviews and give advice on how to choose the right products for RV travel. He puts all that RV knowledge and experience to good use in his sharing posts. Besides product buying guides/reviews, Chris also writes informative articles, how-to articles and RV camping guides in his own interesting viewpoint. Chris’s blog is one of the most reliable information sources for RV campers no matter if you're an expert or a determined beginner.

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My RV tire reads ,, ST225/75R15,, on ther side wall it reads 80 max psi,, question: do i have to run them at 80 psi, or can i run them at 65 psi, pros and cons of doing this,, RV weighs approximately 6,650 lbs

You probably need a bit hifher then 65psi, but not the full 80 psi. And so probably, because mostly the 65 psi is yust enaugh fir the weight on tires and 65mph. The E-load 80 psi tire is stiffer, so has smaller surface on the ground, wich has to be compensated by higher pressure to give the same deflection.

For single axle trailer, often the D- load 65psi would need fi 70 psi to give it comfortable reserve, then tge E- load 80 psi would need mayby 75 or 80 psi.

Greatings from an hobby pugheaded Dutch selfddclared tirepressure-specialist( so you can yudge the reliability of my answer.

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What Should My Tire Pressure Be When Towing A Travel Trailer?

If you’re planning on towing a travel trailer, it’s important to know what your tire pressure should be. This article will tell you everything you need to know about towing a travel trailer, including what your tire pressure should be. It’s important to have the correct tire pressure when towing a travel trailer because it can affect how your trailer handles on the road. This article will help you make sure you have the correct tire pressure for your trailer, so you can tow it safely.

So, What Should My Tire Pressure Be When Towing A Travel Trailer?

According to the information provided, you should never inflate your tires to less than the maximum cold air pressure as indicated by the manufacturer or as molded onto the tire itself.

Let’s dig into it and see what we can learn.

What Are The Benefits Of Maintaining The Proper Tire Pressure When Towing A Travel Trailer?

The benefits of maintaining proper tire pressure are many and varied. Most importantly, it helps to keep the trailer stable on the road, and helps to prevent sidewall damage and blowouts. It also helps to improve fuel economy, and can even help to extend the life of your tires.

One of the most important things to remember when towing a travel trailer is to maintain proper tire pressure. This is especially important when towing a large or heavy trailer, as improper tire pressure can lead to instability and even accidents.

There are many reasons why maintaining proper tire pressure is so important. First and foremost, it helps to keep the trailer stable on the road. This is especially important when towing a large or heavy trailer, as improper tire pressure can lead to instability and even accidents.

Second, maintaining proper tire pressure helps to prevent sidewall damage and blowouts. When the tire pressure is too low, the sidewalls of the tires can flex and bulge, which can eventually lead to a blowout.

Third, maintaining proper tire pressure can help to improve fuel economy. This is because properly inflated tires have less rolling resistance, which means they require less energy to move. This can lead to significant savings on fuel costs over the life of the tires.

Finally, maintaining proper tire pressure can even help to extend the life of your tires. This is because properly inflated tires experience less wear and tear, and thus last longer.

Overall, the benefits of maintaining proper tire pressure are many and varied. From preventing accidents to saving money on fuel, properly inflated tires are an essential part of towing a travel trailer.

What Are The Consequences Of Towing A Travel Trailer With Improperly Inflated Tires?

If you’re towing a travel trailer with improperly inflated tires, the consequences can be serious. Tires that are underinflated can overheat, leading to a blowout. Blowouts can cause loss of control and serious accidents.

Overinflated tires can also be a problem. They can cause the trailer to bounce and be difficult to control. They can also wear out prematurely.

It’s important to check your trailer’s tire pressure regularly and inflate the tires to the manufacturer’s recommended pressure. This will help ensure a safe and comfortable journey.

What Are The Best Ways To Check Tire Pressure When Towing A Travel Trailer?

The best way to check your tire pressure when towing a travel trailer is to use a tire pressure monitoring system (TPMS). This system will allow you to see the pressure in your tires in real time, so you can make sure that they are always at the correct pressure.

Another way to check your tire pressure is to use a tire gauge. This is a simple tool that you can use to measure the pressure in your tires. It is important to check your tire pressure regularly, as it can fluctuate based on the temperature and the amount of weight that you are carrying.

If you are not using a TPMS or a tire gauge, you can still check your tire pressure by looking at the sidewall of your tires. The sidewall of your tires will have a number that indicates the minimum pressure that your tires should be inflated to. This number is usually between 30 and 35 PSI.

It is important to check your tire pressure before you start towing your travel trailer. This will help you avoid any problems that could occur, such as a blowout. You should also check your tire pressure periodically throughout your journey, just to be safe.

How Often Should You Check The Tire Pressure When Towing A Travel Trailer?

This is a great question and one that we get asked a lot! The answer really depends on a few factors, such as the type of trailer, the weight of the trailer, the terrain you’ll be traveling on, and the weather conditions.

If you’re traveling on rough terrain, you’ll want to check the tire pressure more often. The same goes for if you’re carrying a heavier load. In general, we recommend checking the tire pressure at least once a week, and more often if you’re doing a lot of driving.

Weather conditions can also affect tire pressure. If it’s hot outside, the air in the tires will expand, so you’ll need to let some out. Conversely, in cold weather, the air will contract, so you’ll need to add some air to the tires.

Finally, it’s always a good idea to check the tire pressure before you start towing. That way, you can make sure that the tires are properly inflated and that you won’t have any problems on the road.

How Can You Tell If Your Tires Are Properly Inflated When Towing A Travel Trailer?

If you’re towing a travel trailer, you’ll want to make sure your tires are properly inflated. Here are a few ways to tell:

1. Check the tire pressure regularly.

2. Look for signs of wear and tear.

3. Have your tires inspected by a professional.

Should I Increase Tire Pressure When Towing?

If you’re towing a trailer, you might be wondering if you should increase your tire pressure. The answer is maybe. It depends on the weight of your trailer and the type of tires you have. If you have light-duty tires, you might not need to increase the pressure. But if you have heavy-duty tires, you might need to increase the pressure by 10 psi.

Additionally, It’s important to inflate your tires to the maximum pressure listed on the sidewall when you’re going to be doing any sort of towing. This is because even if you’re not carrying the full weight that your vehicle and tires can handle, half of the maximum pressure will not support half of the weight. There is a significant drop-off in the amount of weight that can be carried when the pressure is not at the maximum.

What Should My Tire Pressure Be When Pulling A Trailer?

If you’re pulling a trailer, you’ll want to make sure your tire pressure is at the proper level. Depending on the size and weight of your trailer, you may need to adjust your tire pressure accordingly. For instance, if you’re pulling a small trailer, you may only need to increase your tire pressure by a few PSI. However, if you’re pulling a large trailer, you may need to increase your tire pressure by 10-15 PSI.

Also, Towing a heavy load behind your car can be tough on your tires. But if you inflate them to the right pressure, it can actually help them last longer. The right pressure for general driving is 40 PSI (pounds per square inch), but for heavy towing it’s 50 PSI. Just don’t go over 51 PSI or you could damage your tires.

Should I Inflate My Travel Trailer Tires To Max Psi?

This is a great question and one that many people are unsure about. There are a few things to consider when making this decision. The first is the weight of your trailer. If you have a lightweight trailer, you can inflate the tires to the maximum psi. However, if you have a heavier trailer, you might want to inflate the tires to a lower psi. This will help to prevent the tires from overloading and becoming damaged.

Another thing to consider is the terrain you’ll be traveling on. If you’ll be traveling on rough roads, you’ll want to inflate the tires to a higher psi. This will help to protect the tires from being punctured by rocks or other debris. However, if you’ll be traveling on smooth roads, you can inflate the tires to a lower psi.

Finally, you’ll want to consider the weather conditions you’ll be traveling in. If you’ll be traveling in hot weather, you’ll want to inflate the tires to a higher psi. This will help to prevent the tires from overheating and becoming damaged. However, if you’ll be traveling in cold weather, you can inflate the tires to a lower psi.

In general, it’s best to err on the side of inflating the tires to a higher psi. This will help to protect the tires from damage and ensure that you have a smooth ride.

Besides this, Whenever you are dealing with trailer tires it is important to make sure that they are inflated to their maximum psi when cold. This is because you not only get the full capacity at the max psi, but you also generate less heat in the tire. This is because there is less flex in the sidewall and you get better wear and better fuel mileage.

How Much Air Should I Run In My Travel Trailer Tires?

This is a great question and one that many people have. The answer really depends on a few factors, such as the weight of your trailer, the terrain you’ll be traveling on, and your personal preference.

For most people, the ideal tire pressure is between 50 and 60 psi. This is a good middle-of-the-road option that will provide a comfortable ride while still being safe and efficient.

If you’re carrying a lot of weight in your trailer, you may want to increase the pressure to 60-70 psi. This will help to prevent the tires from becoming overloaded and potentially damaging the trailer.

If you’ll be traveling on rough or uneven terrain, you may want to decrease the pressure to 40-50 psi. This will help to absorb some of the shocks and bumps, and prevent the tires from becoming damaged.

Ultimately, the best tire pressure for your travel trailer is one that you’re comfortable with. Experiment a bit to find the perfect pressure for your needs, and always check the pressure before heading out on a trip.

Also, Tires have an important sticker on them that says how much air pressure should be in the tire. This is called the “max cold pressure.” You should never put more air in the tire than what is listed on the sticker.

What Are Some Signs That You Are Overloading?

If you’re feeling overwhelmed, stressed, or like you’re constantly running out of time, you may be overloading yourself. Here are some signs that you’re taking on too much:

1. You’re always tired

If you’re finding yourself exhausted all the time, it’s a sign that you’re doing too much. When you’re constantly overworked, your body doesn’t have time to recover, which can lead to fatigue.

2. You’re getting sick more often

When you’re overloading yourself, your immune system takes a hit. If you find yourself getting sick more often than usual, it’s a sign that you need to cut back on your commitments.

3. You’re not taking care of yourself

If you’re neglecting your own needs in favor of completing tasks, you’re overloading yourself. When you’re constantly putting others first, you end up neglecting your own health and wellbeing.

4. You’re feeling anxious or stressed

If you’re feeling overwhelmed by your commitments, it’s a sign that you’re taking on too much. When you’re constantly anxious or stressed, it can have a negative impact on your mental and physical health.

5. You’re not enjoying your life

If you’re not taking the time to do things you enjoy, it’s a sign that you’re overloading yourself. When you’re constantly working or taking care of others, you miss out on the joys of life.

If you’re experiencing any of these signs, it’s important to take a step back and reassess your commitments. Overloading yourself can have serious consequences on your health and wellbeing.

In conclusion, the best tire pressure for towing a travel trailer is between 80 and 90 PSI. This will give you the best handling and stability while towing.

Before making a decision, you should take into account all the key factors.

-Towing a travel trailer puts additional strain on your vehicle, so it is important to ensure that your tires are properly inflated. -Under-inflated tires can cause premature wear and tear, and can even lead to a blowout. -Over-inflated tires can make y

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Home » Travel Tips » Understanding Tire Pressure when Towing a Travel Trailer

Understanding Tire Pressure when Towing a Travel Trailer

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There’s nothing quite like the feeling of hitting the open road, travel trailer behind you, ready for whatever adventures await. For many, this is the very definition of freedom. Of course, having a travel trailer means keeping up with maintenance and safety. Unfortunately, one of the safety features that often get overlooked is tire pressure. 

Tire pressure is measured in PSI, or pounds per square inch, and shows you how much air is in your tire. As one commercial pointed out many years ago, of all the features of your vehicle, the tire is the only thing to actually touch the road. Because of this, it’s vital you keep your tires properly maintained. When your tire pressure is too low or too high, you can run into problems including poorer fuel efficiency, and even run the risk of permanently damaging your tires, which puts your whole family at risk.

Finding the Correct Tire Pressure for Your Travel Trailer

You might think it’s easy to know exactly what pressure your tires need to be set to, but it isn’t always. Of course, the easiest way to do this is to consult the trailer itself. On the front left corner of most trailers you’ll find a Federal Certification Tag that displays various specs, including tire pressure. However, this tag displays the ideal tire pressure for your trailer when it’s empty. When you add weight in the form of people and supplies, that number can change.

In addition, your tires will have a max tire pressure listed somewhere on the side wall. Many people make the mistake of thinking that this is what the pressure should be set to. But remember, this is the maximum pressure for a fully loaded travel trailer, not the recommended pressure.

What Is the Correct Travel Trailer Tire Pressure?

So, if you think about it, by checking these two numbers, you have a range to shoot for. The number on the Federal Tag can be considered the minimum pressure, while the number on the side of the tire is maximum. What pressure you end up filling your tires to should be somewhere in the middle of those two extremes. 

Are you running your trailer completely empty? Then that minimum number is your nest net. However, if your planning on towing it fully loaded, and you’ll be using the trailer with several people, then you might want to fill your tires closer to the max. In most cases, this number is usually somewhere between 40 and 65 psi.

Of course, you’re not necessarily going to want to change your tire pressure each and every time you take it out for a spin, so the best bet is to find a happy medium based on how you think your trailer is going to be filled on most occasions. 

What Happens If Your RV Tire Pressure Is Too High Or Too Low?

You might be wondering why this is so important, but there are several reasons why it’s important to have the right tire pressure.

If your tire pressure is too low, it can cause serious problems. The first, and most noticeable, is a low enough tire pressure will make it harder to drive. Your vehicle will be less responsive. In addition, you will notice an immediate difference in your gas mileage, which will cost money in the long run. This extra strain on your tire can lead to tire damage much earlier than expected, costing money and putting your family in danger.

Strangely enough, a tire that’s inflated too much can have some of these same problems, wearing out quicker than it should. Over-inflated tires can blowout at any time, causing potential problems on the road.

RV Trailer Tire Pressure Tips

When filling your tires, remember these tips: First, never rely on someone else to tell you the right pressure. Consult the Federal Tag, the side wall and the owner’s manual to help you determine the right pressure. 

Because tire pressure is so important, buy a really good tire pressure monitoring system to help keep an eye on your tire pressure at all times.

If you’re not sure about the tires, check them. A couple extra minutes now can save you hours of grief later one. If it’s too high or low, don’t pull the trailer until you’ve fixed the issue. 

As you can see, tire pressure is very important when it comes to the life of your tires and the safety of your family. Thankfully, it’s not hard to get it right, as long as you follow these tips.

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What should travel trailer tire pressure be?

• BEGINNERS GUIDE

G. Yoganand

Travel trailer tires are much more critical and should be inflated at right PSI.

But, how do you know the right PSI? We will find out, read on!

Replacing the tires when the thread is gone or when it blows out will cost you few hundred dollars. Inflating the tires to right PSI will enhance the tires life.

Thus, always inflate the travel trailer tires to the right PSI.

What PSI for travel trailer tires

Inflating the tires to correct psi is critical in keeping them in good conditions. So, what’s the correct pressure for travel trailer tires?

No, there isn’t a same answer for all travel trailers. It depends on your travel trailer and the tire.

Ideally, you should set the travel trailer tire pressure to what the sticker inside your rig or the manual mentions unless you changed the original tires with different load capacity. The PSI mentioned on the sidewall of tires is the maximum cold pressure.

The PSI mentioned on the tire sidewall is the maximum pressure it can be set to but you don’t really have to set it to that level unless required.

Setting correct PSI based on your RVs load is critical. Too little pressure can result in sidewall flex resulting in heating which is a common cause of blowouts. Too much tire PSI can result in loosing traction of the travel trailer.

Each travel trailer has maximum weight carrying capacity and on the basis of that, the psi will be specified for the tires. You will normally find the label somewhere inside the travel trailer mentioning the psi that need to be set for the tires.

Apart from the label inside the trailer, a standard sidewall ratings would be present on the trailer tire. If the the tire came along with the new trailer, then at both the places the psi would be same or almost similar with slight difference. When that is the case, its straight forward for you. Just maintain that psi in the tires.

Adding tire pressure monitoring system like this one by EEZ RV is a great investment. Its a multi purpose system that also has anti theft sensors. Its an advanced alert system for your RV that comes with 3 year warranty. It continuously monitors the tire pressure/temperature every 6 seconds.

At times, the label could be missing inside the trailer. You need to contact the dealer for that information or it could be mentioned on the manual as well.

So, what the average psi looks like?

For most travel trailers, the tire pressure is mostly between 40 psi to 65 psi. Remember, this is not what you have to set, its what the average numbers look like. That is, most travel trailer tires will be inflated with PSI falling in this range.

This range is depended on the weight of the trailers as most of the trailer weigh in between 1500 lbs to 15,000 lbs , hence the psi range.

Above point is very critical.

Do not set tire pressure for your trailer tires looking at your neighbor’s travel trailer. Two trailers will always be different, and will have different GAWR (gross axle weight rating) and GVWR (gross vehicle weight rating).

Its simple as that. The only way to find out whats the correct pressure is to look at the ratings mentioned by you manufacturer. In case you do not find those ratings then get your RV weighed and take professional expert advice to figure put the tire pressure.

Finding the right PSI

So, the trailer you have is an old one and its time to replace the tires on it. The label on the trailer has a different psi and the tires you bought are showing psi that’s different.

Now, one thing you should be doing is don’t get tires that has psi lesser than the one mentioned on trailer .

• The trailer manufacturer gives you psi for tires that will be required to carry the trailer weight and any lower pressure would mean the tire wont be in position to take that load. Hence, the psi on your tires shouldn’t be lower than that.

What about higher psi? That happens a lot many times with people. Normally, when you buy a trailer, the tires that are given are just good enough to handle the weight of the travel trailer. Later when you a buy a new tire, that could be rated for higher psi.

So, what do you do in that case? Do you go for the psi mentioned on tires or the lower psi mentioned on the RV manual?

The RV manual or label mentions the psi needed to carry the maximum weight of the travel trailer where as the tires have rating of psi which it can carry max.

So, its better to go for psi mentioned on the tire. This however does not mean that the weight carrying capacity of the trailer would increase. With the higher psi of tires, the trailer may not ride ideal though.

Its also okay to get the psi reduced to what the trailer mentions. It all depends on the psi and the weight being carried. Make sure the psi should not be less than what the RV manual or label mentions though. A lower psi will heat the tires ad result in blowout.

Similarly, setting up higher psi than what the tires are rated for will lead to loosing traction.

Replacing the trailer tires

Normally, a trailer tire would last more around 4-6 years or even beyond .

When you are about to replace the tires, make sure you buy the tires that are of same load capacity .

Having the same capacity is necessary as the trailer would also have many other elements or components that would be designed for that load. This also helps in avoiding the confusion of setting up psi.

When you have same psi written on tires and also on trailer manual, go ahead with that pressure. At times, the psi can be set a little higher to about +5 but not more than 10. Doing that should be avoided. As always do not set the psi lesser than what is mentioned when you don’t go with full load on trailer.

RV professionals or tire experts can also help you through trailer tire pressure charts or trailer tire size charts. But, if you know what tires were originally given for the trailer then go for same brand and rating.

Overloading the trailer

This is one factor that can lead to tire blow out or reducing the tires life over the period of time. Make sure you do not overload the trailer as this will mean your trailer tires wont be able to handle the weight.

The tires are rated for max weight of the trailer. Going beyond that weight limit will mean the psi set in tires wont be capable of handling the weight.

Overloading the trailer not only puts you, your car and trailer in threat but also others on road. A overloaded trailer can slide and turn over, it can collide with other vehicles as well.

Weighing your travel trailer regularly can help you in planning. Not many of us weigh the rv’s regularly and thus we tend to overload the trailer unknowingly. But, that’s not a good practice.

Not inflating the tires correctly

Not setting the tire pressure upto the number listed on the tires or trailer will result in reducing the weight carrying capacity of the tires on trailer.

Under Inflation

The trailer tires need to be inflated enough to handle the top load from the trailer, their sidewalls are designed so. But, with less than specified psi , the tire sidewalls will start generating excessive heat and result in failure.

Over inflating

Similarly, over-inflating the tires of trailer can also result in failures. This leads to wearing out of the tires in the center. But, the end result is same. Thus its extremely important that you inflate the tires correctly.

Another thing to note, as the trailer moves it will heat the tires and the psi may read higher. So, the bets practice is to check the tire pressure when its cold. Early in the morning when you haven’t taken it road is a good time to do this activity.

Its always a good practice to check the tire pressure before making a long travel. Make sure you do this during morning time as the tires will be cold and thus give accurate psi.

What tires for trailer

Buying a tire for a car and buying it for trailer is completely different. Tires for trailers are specially designed and you would see text “ST” written on their sidewalls. ST stands for special trailers, they have strong sidewalls. And, this makes them good enough to handle the vertical load.

Different companies like goodyear, michelin and many other make quality tires for travel trailer. Selecting the right tire is critical and hence check twice before buying a new one for your trailer or even fifth wheel.

Apart from proper inflation

While maintaining the tire pressure is the most important aspect of keeping trailer tire good. Lets, check on other pointer to be given similar attention. This tips will definitely help in increasing the life of trailer tires.

1. Check sidewalls

Before you start that camping travel make sure to check the tire sidewalls. Identify cracks or breaks before you go on road. Its important that you have perfectly fit tires and not take any chance whatsoever. Doing such inspection should be in your travel checklist.

People often overuse their tires on RV’s or camper. Replacing tires on time should be your priority. Normally, the tires go out of use in around 4-5 years and thus keeping track of them is necessary. Also, at times you may not be able to make out if the tire is still good or not. In such cases take the trailer to a professional and get the tires inspected.

Remember, a blow out in the middle of road is more dangerous and is also costly. A trailer that fails on the middle of road need to be towed to a repairer. And that can be costly and tedious job. You surely don’t want that to happen to you.

2. Extra weight on trailer

Maintaining pressure as per the laid out value is necessary to support the weight while towing a trailer. The manufacturer gives the psi value for max pressure that trailer handle.

Exceeding the stipulated weight will mean the tires wont be able to tackle the weight. And this can result in anything. Remember, even few pounds of extra weight can lead to incidents. Make sure you weigh the trailer properly and keep the weight within limits.

When going out for long travel we often pack unnecessary items. This leads to weight that goes out of the limit. Keeping a proper checklist and avoiding elements that are not needed can help in checking the weight.

3. Tire care during storage

While the travel trailer camper is in storage, there is good chance of damage too. Make sure the tires are protected well. You can make use of tire covers for this. Also keeping the tires above ground can help relive pressure on them.

Keeping them without covers will also affect the tires due to UV radiation and or moisture. Also, during winter times its necessary that the whole trailer is well stored else you may have hard time getting it out next season.

Similar care is also needed in other towable RV’s like pop up camper or tent trailer as well as in motorhomes like class C RV or class A. RVs need special storage during winters.

4. Replace on time

Getting the tire replaced on time is necessary. With limited life, you better replace them before a blowout happens. Else, the impact could be worse. Doing period checks on sidewalls, checking for wear and tear can help a lot in deciding.

A scheduled maintenance of the trailer can take care of this aspect. Also, make sure you put tires that have same rating and capacity. Many a times you get tires that aren’t the same and that creates confusion about psi as well.

Its better to go for tires that manufacturer recommends. Whether you have a jayco or a airstream travel trailer or a winnebago RV, its all similar for all, you need to take good care and replace the tires on time.

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Tire Pressure When Towing

Time To Read:

• The Vehicle Manufacturer's Recommendation: Why It's Key
• Handy Facts and Tips About Tires
• Common Myths About Tire Pressure When Towing
• How to Spot Tire Pressure Issues
• Final Thoughts

Have you ever been on the road, towing a trailer or a heavy load, and wondered if the air in your tires was correct pressure? Ensuring the proper pressure is crucial, not just for the longevity of your tires but also for your safety and the safety of others on the road.

Best Tire Pressure When Towing The proper tire pressure for towing is the vehicle manufacturer’s recommended tire pressure. Unless your vehicle’s owner’s manual specifies otherwise, there’s generally no need to adjust your air pressure for towing.

In this article, we’ll debunk common myths about tire pressures and towing, provide handy tips about tires, and guide you on how to spot and address tire pressure issues. Dive in to ensure a safe and smooth towing experience.

The Vehicle Manufacturer’s Recommendation: Why It’s Key

Every vehicle comes with a set of recommendations from the manufacturer. These guidelines are not just random numbers; they’re based on extensive testing and research. When it comes to tire pressure, these numbers ensure optimal performance, safety, and fuel efficiency.

• Safety : The right tire pressure ensures that your tires have the best possible grip on the road. This is crucial, especially when towing, as it affects your vehicle’s handling and braking.
• Performance : Your vehicle’s handling, acceleration, and braking all depend on tire pressure. Too high or too low, and you might find your vehicle behaving unpredictably, especially when towing.
• Fuel Efficiency : Believe it or not, your tire pressure can affect your gas mileage. Properly inflated tires reduce rolling resistance, which means your engine doesn’t have to work as hard.

Note:  Always refer to your vehicle’s owner’s manual for the recommended tire pressure. It’s the most reliable source of information.

Why You Shouldn’t Change the Recommended Pressure

There’s a lot of advice floating around, especially online. Some folks might tell you to increase tire pressure for towing, while others might suggest the opposite. But here’s the thing: unless your vehicle’s manual specifically says so, you shouldn’t need to adjust your pressures towing.

• Risks of Over-Inflation : Over-inflating your tires can reduce their grip on the road. It can also make them more prone to punctures and other damages. On top of that, it can lead to uneven tire wear, especially in the center of the tire tread.
• Risks of Under-Inflation : Under-inflating, on the other hand, can cause your tires to overheat, especially when towing. This increases the risk of a blowout. It can also lead to uneven tire wear on the edges.

For more insights on tire types and their specific load ranges, check out our detailed guide on  Load Range: XL vs E .

Remember, your vehicle’s manufacturer knows best. They’ve done the research, the testing, and have provided guidelines to ensure your safety and your vehicle’s performance.

Maximum Tire Pressure and Maximum Load: What You Should Know

Every tire has a max pressure rating, often referred to as “max psi.” This number indicates the highest amount of air pressure the tire can safely handle. It’s essential not to exceed this number, even when towing, as it can lead to tire damage or even a blowout.

• Max Pressure (Max PSI) : This is the tire’s maximum safe inflation level. It’s usually printed on the tire’s sidewall. Over-inflating beyond this point can be dangerous.
• Max Load : This refers to the heaviest load the tire can safely carry when properly inflated. Exceeding this load can put undue stress on the tire, leading to premature wear or failure.

Rear Axle and Tire Tread

The rear axle of your vehicle plays a crucial role, especially when towing. It bears the brunt of the weight, making the rear tires especially important.

• Rear Axle : This is the axle located at the back of your vehicle. When towing, it’s under more stress due to the additional weight, making the correct tire pressure even more vital.
• Tire Tread : The pattern on the surface of your tire. It’s designed to provide grip. Over time, and especially with incorrect tire pressure, this tread can wear down, reducing your tire’s effectiveness and safety.

Tip:  Regularly checking your tire tread can give you insights into your tire’s health. Uneven wear might indicate issues with alignment or inflation.

Other Need-to-Know Tips

• Trailer Tires vs. Regular Tires : Trailer tires are specifically designed to handle the loads and demands of towing. They’re built differently from regular tires and have their own set of recommendations. For a deeper dive into the differences and when to use each, explore our guide on  Can I Put LT Tires on My SUV, Trailer, Car, or Truck? .
• Fuel Efficiency : Maintaining the correct tire pressure isn’t just about safety; it’s also about saving money. Properly inflated tires can improve your gas mileage, saving you money at the pump.

Be Careful with Online Tips

The internet is a vast space, and while it offers a plethora of information, not all of it is accurate or safe. When it comes to tire pressure, especially while towing, it’s essential to differentiate between myths and facts.

• Increasing Tire Pressure for Towing : A common misconception is that increasing your tire pressure will provide better stability when towing. However, this can lead to reduced traction and increased wear in the center of the tire.
• Decreasing Tire Pressure for Better Grip : Some believe that a lower tire pressure will offer more surface area and, thus, better grip. But this can cause the tire to overheat, especially under the added strain of towing.

Setting the Record Straight on Rear Tire Pressure and Trailer Tires

Your vehicle’s rear tires play a pivotal role when towing, bearing most of the trailer’s weight. It’s crucial to ensure they’re correctly inflated.

• Rear Tire Pressure : While some might suggest increasing the rear tire pressure when towing, it’s essential to stick to the manufacturer’s recommendations unless otherwise specified.
• Trailer Tires : These are specially designed for the demands of towing. They’re built to handle heavier loads and have different pressure recommendations than regular tires.

The Truth About LT Tires and Towing

Light Truck (LT) tires are designed for heavier loads and rougher terrains. They’re sturdier and can handle the demands of towing better than regular passenger tires.

• LT Tires for Towing : If you’re frequently towing heavy loads, LT tires might be a good choice. They offer better stability and are designed for the job.
• Safety First : Regardless of the type of tire you choose, always ensure they’re correctly inflated and in good condition before towing.

Spotting Tire Wear Signs

Your tires speak to you, not with words, but with patterns. By observing the wear on your tires, you can get insights into potential issues, including incorrect tire pressure.

• Center Wear : If the middle of your tire is wearing out faster than the edges, it might be over-inflated.
• Edge Wear : If the edges of your tire are wearing out faster than the center, it might be under-inflated.
• Uneven Wear : This can indicate issues like misalignment or problems with suspension components.

Tip:  Regularly inspecting your tires can help you spot and address issues before they become major problems.

Other Signs of Wrong Pressure

Apart from wear patterns, there are other indicators that your tire pressure might not be optimal.

• Vehicle Handling : If your vehicle feels unstable, especially when cornering, it might be due to incorrect air pressure.
• Decreased Fuel Efficiency : If you notice that you’re filling up your tank more often than usual, it could be a sign of under-inflated tires.
• Vibrations : Feeling unusual vibrations while driving, especially at high speeds, can indicate tire issues.

Tools to Help Monitor Tire Pressure

In today’s tech-driven world, there are tools available that can help you keep a close eye on your tire pressures.

• Tire Pressure Monitoring System (TPMS) : Many modern vehicles come equipped with a TPMS that alerts you if any tire is under-inflated.
• Handheld Air Pressure Gauge : A simple, yet effective tool that every vehicle owner should have. It allows you to check your tire pressure anytime, anywhere.

Below are some links you may find helpful when learning about tires:

• Tread Rightly: Why Tire Pressure Matters – Car and Driver
• Tire Tips for Safe RV Travel – Consumer Reports
• Preparation and Driving Tips for Safe Towing – Consumer Reports

Ensuring the correct tire pressure, especially when towing, is paramount for both the longevity of your tires and your safety on the road. 

By adhering to the vehicle manufacturer’s recommendations and regularly checking your air pressures, you can ensure optimal performance and safety.

Remember, while there’s a plethora of advice available online, always refer to trusted sources such as the tire placard in your driver’s door jamb and your vehicle’s manual for the most accurate information.

Good luck and happy motoring.

About The Author

Will, the founder of TireGrades.com, is a tire expert and car enthusiast with roots in the industry dating back to his childhood next to the founder of Parrish Tire. His expertise, honed through a consulting role with Discount Tire, encompasses developing training courses and strategic planning.

Based in Charlotte, North Carolina—a hub for tire manufacturing and NASCAR—Will’s three-decade passion with all things on 4 wheels includes involvement in SCCA events and local car clubs. At TireGrades.com, he dedicates himself to providing practical solutions and reliable information for common tire-related queries, helping vehicle owners make informed decisions.

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Tire Pressure When Towing a Trailer

By: Author Couch Potato Camping

Posted on Published: June 22, 2022  - Last updated: December 21, 2022

Categories RV Maintenance

Maintaining proper tire pressure for your RV and your tow vehicle is critical to the safety of your towing experience. However, proper tire inflation will also affect your average miles per gallon of fuel used when traveling.

Proper tire pressure on your RV, travel trailer, and tow vehicle will help prevent blowouts and other tire related issues that may occur. Confirming, prior to each travel day, you have the correct tire pressure for all the various tires on your setup is essential for you and your equipment’s safety when traveling.

Note: Ideal tire pressure for RV and tow vehicle tires will vary greatly depending on the type of tire and the suggested manufactures recommended operating tire pressure for each individual tire.

Every individual tire, regardless of the manufacturer or the model number of the tire, has its own unique operating tire pressure that has been engineered by the tire manufacturers for each specific tire. Because of this characteristics of tires, under inflation and over inflation of your tires can greatly affect a safe towing experiencing.

How to Determine the Proper RV Tire PSI?

All tire manufacturers adhere to an industry standard load rating chart for the various types of tires that may be used on RV’s and vehicles. This is a letter code that informs the purchaser how much weight a tire can carry and has been certified and engineered by the tire manufacturer for each specific tire.

RV manufacturers, when designing and engineering their various products, utilize this information to provide the specific tires that can accommodate the multitude of RV weight loads. This information is provided on your RV, typically on a sticker on the exterior. RV companies will determine the proper tire to utilize depending on the position and weight loading characteristics of each individual travel trailer or motorhome they produce.

Due to the broad range of RV model configurations and weights, the RV manufacturer will select the proper tire – using the industry standard load rating and tire pressure ratings – to use on their individual RV models. It is beholden of the consumer who purchases the RV to maintain the proper suggested tire pressure and load ratings for their RV’s tires.

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RV Tire Inflation Basics   

Every tire will have the tire manufacturers recommended weight load and suggested safe operating tire pressure codes are stamped on the sidewall of every tire they produce. The owners of RVs should take note of their specific rig’s tire specifications and use that as a guide when properly maintaining and inflating their RV and tow vehicle’s tires.

Another important factor that will assist in maintaining the safe use of your RV’s and tow vehicle’s tires is the amount of weight you add to your RV and tow vehicle. Similar to cars and trucks, RVs – regardless if they are a travel trailer or a motorhome – have a maximum gross vehicle weight rating (GVWR). The maximum GVWR includes the base, empty weight of the RV plus the maximum added weight, such as fresh water, camping gear, grey and black tanks at capacity, etc.

It is also important to be aware of and follow the sidewall codes found on the tires for the purpose of achieving the correct tire pressure. The code indicates the country of origin, the manufacture date, and the maximum inflation pressure (cold).

Most RV manufacturers will suggest you inflate and maintain the max cold PSI listed on the sidewall of your RV tires. Validate your RV and tow vehicle tire pressures by spot checking with a quality tire pressure gauge prior to traveling (before the tires get warm from going down the road). As your tire temperature increases during use, the tire pressure will increase as well. Thus, why it is important to measure your tire pressure when the tire is cold or unused for that day.

One note on tire pressure to consider, altitude and ambient outside temperature can affect your RV’s and tow vehicle’s tire pressure. As the ambient, exterior temperature increases, the tire pressure will increase approximately 1 PSI for every 10 degrees Fahrenheit.

On the flip side, as your altitude increases, the tire pressure will decrease approximately 2 to 3 PSI for an increase of 5,000 feet above sea level. It is recommended you confirm and adjust your cold tire pressure before and after reaching your destination when ascending or descending in elevation.

Tire Pressure Monitoring Systems

A Tire Pressure Monitoring System or TPMS is a real-time monitoring device that provides current operating tire pressures for your RV and if desired your tow vehicle. TPMS devices can be placed on the tire’s fill nozzle in lieu of a cap.

The real-time tire pressure, and temperature (depending on the model of TPMS you purchase) is sent back to the driver wirelessly to a monitor device that is placed in the line of sight of the driver.

A tire pressure monitoring system can alert the driver of any sudden loss or increase in tire pressure for the tires that have the installed monitoring devices. This information can assist or alert the driver – if a sudden increase or decrease in tire pressure is experienced – of a potential impending tire blowout or major malfunction.

Many TPMS devices can monitor several tires, depending on the brand you purchase. With some brands having the ability to monitor up to 16 or more tires at one time. While an installed TPMS will not completely prevent tire malfunctions or failures, it can be an early warning device that may provide the driver

RV Trailer Tires Maintenance & Safety Tips

• Perform a visual tire inspection prior to, during, and after each travel day.
• Monitor and adjust your tire pressure accordingly.
• Set your tire pressure when the tires are cold.
• Inflate your (cold) RV tires to the maximum tire pressure noted on the sidewall.
• Keep your RV tires clean and free of any debris.

Why Do My Trailer Tires Keep Blowing Out?

Trailer tire blowouts are as a result a result of potentially one or several compounding factors. Included on your trailer sidewall codes are the load rating numbers that correspond to the manufacturers suggested max travel speed for that particular tire.

Here are some of the major factors that can singularly or together can cause RV tires to blowout:

• Tire pressure is too low for the load being carried
• Tire pressure is too high causing excessive strain on the tires while under load
• The trailer is being towed above the suggested speed rating for the tires
• Trailer tires are poorly made or may defective from the factory
• Tires have excessive wearing causing the rubber to be thinner than necessary

Why Do My Trailer Tires Have Uneven Wear?

Similar to the various reasons for trailer tire blowouts, there are several factors that may cause uneven wearing on your RV’s tires. It is important to have your RV maintained by a professional to avoid uneven tire wearing. Here are some of the factors than can cause uneven wear:

• Trailer tires and the trailer are overloaded
• Travel trailer axle could be bent or improperly installed
• The trailer suspension and lead springs may be damaged
• Tires may be improperly balanced on their respective rims
• Tire pressure is either below or above the suggested PSI

How Often Should I Replace My Trailer Tires?

Weather conditions, frequency of use, and trailer storage location are a few of the major factors that will determine when you should replace your trailer tires. Under normal, industry annual usage, trailer tires should be replaced every 5 to 6 six years.

However, where the trailer is being stored, if it is being stored inside or uncovered and exposed to the elements and the number of miles put on the trailer tires each year will also factor into the replacement frequency.

Trailer tires exposed to direct exposure to UV rays from the sun, will dry out the tire rubber and can cause cracking and degradation to the treads and sidewalls. It is suggested that if you plan to store you trailer or RV long-term, provide covers for each tire.

Your annual miles traveled with your RV is another major factor into how often you should replace your tires. If, for example you are a full-time RVer, and you’re putting 15,000+ miles annually on your tires, you will need to replace your tires more frequently than the RV owner who only utilizes their RV say three times a year for no more than 1,000 miles.

Should Trailer Tires Be Balanced?

Whether one should have their travel trailer tires balanced seems to be a topic of debate. While some believe it is not required, others believe having your trailer tires properly balanced assists in the even wearing of your tires and the ‘trailing’ characteristics of your trailer.

There is the potential when the trailer tires are not balanced, the driver in the tow vehicle may feel a slight vibrations when at highway speeds and may experience uneven tire tread wear. However, there are no set rules that demand the balancing of trailer tires, though most travel trailers we have seen and owned had balanced tires. 

Setting the Correct RV Tire Pressure – How to do it

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Did you upgrade your camper’s tires to a higher load range? Maybe the tire information sticker on your RV has become unreadable or is missing.  Maybe you just want to be sure you are getting the best performance out of your tires.  Whatever your reason for searching is, you have come to the right place.

Most RV tires should be filled between 40 and 80 PSI.  The exact pressure depends on the load range of your tires and how much weight the RV is carrying.  There are 3 methods to determine the correct tire pressure:

• Use the Max pressure found on the tire’s sidewall.
• Use the values on your RV’s tire information sticker.
• Calculate the pressure using your RV’s axle weight and tire load charts.

If you’re like me you have always been taught to fill your tires to the pressure listed on the tire, or to check the stick on your door jam or owner’s manual for the proper pressure.  For your average car this is great.  The thing about cars is their weight doesn’t change much.  Sure, you might fill the trunk after a trip to the home improvement store, or load up the family up to go somewhere, but that’s nothing compared to the thousands of pounds of cargo some RVs can handle.

Why is the proper tire pressure important?  Rather than take my word for it, here is a quote from Michelin’s RV Tire Guide.

“An underinflated or overloaded tire will build up more heat that could go beyond the endurance limits of the rubber, steel belts, and radial cords. This could cause sudden tire failure. Underinflation will cause poor handling, faster and/or irregular tire wear, and a reduction in fuel economy. Overinflation, on the other hand, will reduce the tire’s contact area with the road surface, which reduces traction, braking ability, and handling. A tire that is overinflated for the weight it is carrying is more prone to a harsh ride, uneven tire wear, and impact damage.”

Now let’s take a look at each method and see how and when each of them should be used.

Method 1: Setting your RV’s Tire Pressure to the Max Pressure found on the Sidewall

This method is the safest option if you aren’t sure what to do.  The tires are rated for maximum capacity at the pressure embossed into the sidewall.  Assuming your tires are a high enough load range for your RV (and everything you have loaded in it), inflating the tires to this value will ensure your tires can carry the weight.

One other reason to use this method is that some tire manufacturers will only warranty tires that are operated at max pressure.  Carlisle is one of these manufacturers.

Trailer tire pressures correspond with the load rating.  Trailer tires identify the load range using a letter system.  Most travel trailer and 5 th wheels tires fall between range B and E.  As you move up in load range the carrying capacity of the tire increases as does the maximum inflation pressure.  The table below lists these load ranges, pressures, and ply ratings.  If you’re wonder what ply means, it’s basically a layer, and traditionally the way to make a tire stronger was to add more layers of rubber and fabric to the sidewall.  The ply ratings can be confusing because this is not necessarily the number of plys in a modern tire.  The ply rating represents the strength of the tire compared to early bias ply tires, modern tires are much stronger and even load range E tires may only have a 2 plys. 

Tire Load Range Pressure and Ply Rating Chart

* Load Ranges above F are mostly used on commercial vehicles not RVs.

You can find the load range and max inflation pressure on the sidewall of the tire.

Method 2: Using your RV’s Tire Information Sticker to Set the Pressure

When RV manufactures design a travel trailer or 5 th wheel they specify a maximum weight that includes the equipment they put in the RV and all the cargo, water and waste that you will add, this is known as the GVWR or Gross Vehicle Weight Rating.  This maximum weight is usually carried by 1, 2 or 3 axles or 2, 4 or 6 tires.  The RV manufacturer also selects the tires that it will put on the RV.

Based on that maximum weight and tire selection the manufacturer will determine the recommended tire pressure.  Most of the time this tire pressure will match the max pressure on the sidewall that we discussed in method 1.

Like Method 1 this will provide you with a safe tire pressure capable of carrying your RV down the road.  Also, like method 1 this might not be the optimal pressure for the most comfortable ride and tire wear.  Another potential problem with this method is that if you replaced the factory tires with new ones that have a higher load range, you may be under inflating them.

Warning: You should always check the max pressure on the tire and make sure the sticker value does not exceed the tire rating.  If incorrect tires were installed on the trailer you could overinflate them causing a dangerous situation.  If you find this is the case your tires need replaced with properly rated ones.

Method 3: Calculating the Correct Tire Pressure using Actual Axle Weights and Tire Load Charts (The Preferred Method)

This method has been championed by Robert Marble of RVTireSafety.com .  Robert retired from a 40-year career as a tire engineer and now writes and speaks about tire safety.  This method requires the most “work” on your part but gives you the best performance from your RV’s tires.

I recommend only following this method for Load Range D or higher.  In my opinion the lower load ranges simply don’t have enough variation in pressure and capacity to be worth the effort.

Before we look at the steps involved in this method let’s look at how Tire Load Charts work.  Load charts are created by tire manufacturers and are unique for each model and size of tire they make.  These charts are continuously updated and reviewed to provide you with the optimum pressure. 

Charts vary from manufacturer to manufacturer, but at a minimum, they all list the tire, load and inflation pressure for single and dual wheels (dualy).

Warning: It is important to note that regardless of the difference from side to side all tires on the same axle should be inflated to the same pressure.  Inflating tires to different pressures on the same axle will reduce the handling and stability of the vehicle.

Step 1: Weigh Your RV

Weigh your RV and tow vehicle.  You will need to find a scale to weigh your trailer.  If you aren’t sure where to find a scale, try searching for CAT scales in your area.  You can find scales at some truck stops, or stores that sell things like dirt, sand and gravel by the truck load. 

You should load your RV with everything you will take camping with you, including fresh water.  Having your tow vehicle weight isn’t absolutely necessary, but it is good information to have.  If possible you should get the weight of your tow vehicle without the trailer, that will allow you to check the tongue or pin weight of your rv and make sure you are within the payload rating of your vehicle.

Here are the weights you should get for towed RVs:

• Tow vehicle without trailer
• Tow vehicle with trailer
• All trailer axles
• 2nd axle (2 nd and 3 rd if triple)
• 3 rd axle (if applicable)

Here are the weights for drivable RVs:

• Front axle of RV
• Rear axle(s) (2 nd and 3 rd for tandem motorhomes)
• 3rd Axle only (for tandem axle motorhomes)
• Trailer weight (if towing a trailer)

Using these weights, you will be able to calculate the weight on each axle to use with the load charts and calculate the combined weight to ensure you are within the ratings of your vehicles.

Step 2: Add 10% for Safety and Lookup Weight in Load Charts

• Add 10% to the axle weight from step 1 to provide some margin of safety and to allow for extra weight you might add.
• Divide your new axle weights in half, this is your load per location.
• Find the load chart for your tires, below are links to several tire manufacturer’s websites to help.
• Find the next higher weight on the chart to determine the appropriate tire pressure.  Make sure to use the appropriate values for single or dual wheels.

Links to Tire Load Charts

• Bridgestone / Firestone
• Carlisle (Only Warranty Tires Operated at Max Pressure)

Example: Finding Tire Pressure from Load Chart

In this example we will use my truck and RV.

Truck: 2015 Ram 3500 Crew Cab Short bed with single rear wheels

RV: Cougar 334RDB 5 th Wheel

RV Tires: Carlisle Radial Trail HD ST235 / 80 R16 Load Range E  

• A: Truck without trailer – 8,660
• B: Truck with trailer – 11,059
• C: All trailer axles – 9,587
• D: 2nd axle – 4,778

Calculations:

• B – A = Pin Weight = 2,399
• Pin Weight + C = Gross Trailer Weight = 11,986
• C – D = 1st Axle Weight =4,809

Now that we have both axle weights add 10% to each for the safety margin and divide in half to get the load on each tire.

• Axle 1 + 10% = 5,290 / 2 = 2,645
• Axle 2 + 10% = 5,256 / 2 = 2,628

Reading the Tire Load Chart:

Based on the Load / Inflation Chart below both axles should be set to 55 PSI.

At 50 PSI the tire can only carry 2,600 lbs so that is not enough, but 55 PSI can carry 2,730.

As I mentioned above, Carlisle only warranties tires operated at Max Pressure, so I continue to run my tires at 80 PSI.  They only provide the load tables to show the relationship between pressure and load capacity.

How Read a Tire’s Sidewall Markings

All 3 methods require you to read and understand the information on your tire’s sidewall.  Below is a quick explanation of some of the markings you will find on a trailer tire and what they mean.

Tire Type: P- Passenger, LT- Light Truck, ST- Special Trailer, T-Temporary

Tire Width: the approximate width from sidewall to sidewall in millimeters

Aspect Ratio: The ratio of sidewall height to tire width, for example a 60 means that the sidewall height is 60% of the tire width

Construction: R- Radial, B- Bias Ply

Rim: Diameter of Rim in inches

Maintaining Your Tire Pressure

One more thing to keep in mind.  After you have your tires set to the proper pressure you need to make sure you keep them there.  One option is the check the pressure in each tire before every trip you take.  This will ensure you are always getting the best performance and life out of your RV’s tires.

An easier solution is to use a Tire Pressure Monitoring System (TPMS) with your RV.  All modern cars and light trucks come with tire pressure sensors installed in the rims to keep you safe, so using the same technology on your RV makes sense.  To add a TPMS to your RV you don’t have to install sensors in your tires, all you have to do is remove the caps from your valve stems and screw on a small battery powered sensor.  A monitor wireless monitor in your cab displays the tire pressures and will alarm you to a sudden loss of pressure.  Top of the line systems also monitor temperature and alert you if that gets too high.  If you want more information on RV Tire Pressure Monitoring Systems click thi s link .

The bottom line is that no matter which method you choose, the most important thing to do is make sure you keep your tires inflated to that pressure and you shouldn’t have any unexpected problems.

Many people talk bad about “China Bombs” Chinese made tires.  On the other hand there are plenty of people who have used Chinese tires for years and haven’t hand any issues.  The key to long tire life is keeping them properly inflated and within their speed ratings.  Excessive speed can cause excessive heat leading to tire failure.

Thanks for reading, please share this article if you found it useful.

1 thought on “Setting the Correct RV Tire Pressure – How to do it”

We have a Grand Design 5th Wheel and recently had to replace the Westlakes 10ply they came with. We upgraded to Hercules 14ply tires. The issue is we are trying to understand what pressure we should be starting out with in the mornings running these. The tire wall is 110psi, the trailer sticker shows 80psi. We did go with the higher ply as we read another blogger advising to cover the GVWR plus 20% and the 10plys just really didn’t do that. So now what? Do we inflate the tires to the max on the tire, that is 110, or keep them inflated at only 80psi? The installer inflated them to 80 when they put them on.

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Pulling RV: Best Truck Tires for Towing a Travel Trailer

• July 29, 2019 /
• RV Tires     RV Towing /
• By Shelly P. /

Another important aspect about RV time are the tires you use. The tires take the load, the brunt of the impacts and more. Making sure you have the right tires on your tow vehicle is another way to upgrade your RV adventure.

The brand name doesn’t really matter here. What matters is the rating. When you are using a light truck or SUV to pull your RV, you want tires that are rated LT or for light trucks.

All you need to do to get more information on the best tires for towing a travel trailer, just keep reading. Our article points you in the right direction when it comes to installing the best RV tires on your tow vehicle.

Recommended Tire Pressure When Towing a Travel Trailer

There are two different rules that apply to the recommended tire pressure when you are towing a travel trailer. One applies to P rated tires (Passenger) and the other to LT rated tires (Light Truck).

Passenger rated tires PSI stops at 35 regardless of any additional upgrades. But that doe snot mean you cannot put extra air pressure inside those tires, You can go to a maximum of 44 PSI. But you cannot have a load capacity over 2600 pounds. The 91% rule will play a role in here as well.

For LT or light truck PSI, it ranges anywhere between 35 and 80 psi depending on load capacity. There are also different psi ratings for cold and warm tires. Travel Trailer tires can be pressurized between 25 and 80 psi and those levels will depend on the weigh of the load you are carrying.

Travel trailers should be replaced every 3 to 4 years regardless of the mileage they have on them. To get the whole story on tire pressure and what is best, click this link to get a very detailed report.

Best SUV Tires for Towing a Travel Trailer

As we stated earlier, the brand is not as important as the ratings on the tire. While the brand will play a role in the quality of the tire you use, good brands do have bad tires from time to time.

Here are 3 brands that make excellent tires for SUVs when they are enlisted in towing a trailer:

• Michelin LTX M/S- Contains a special feature called a contact patch. This patch helps distribute acceleration and braking forces which helps the tire’s lifespan.
• Firestone Transforce A/T- This tire is specifically designed for SUVS who need good traction as well as strength for towing. They perform well on different surfaces as well as in different weather conditions
• Bridgestone Dueler A/T Revo- These tires have a tread life of about 50,000 miles and can handle speeds up to 112 mph. A nylon spiral design helps keep them in shape

Are Bigger Tires Better for Towing

Not really. The reason behind that negative answer is that there is more items in play when towing a trailer. While larger tires are good to keep the trailer hitch away from the ground, a 25 inch tire will lower the hitch 2 1/2 closer than a 30 inch tire.

You also have to take into account your speedometer, odometer and fuel economy. A tire that is 3% larger than the stock tire you get when you bought your vehicle will affect those readings and lower your fuel economy.

What works best for towing would be a stock tire or one that is only 1% larger than that. If you are going to go larger than 1%, it is a good idea to re-calibrate your speedometer and odometer so you get the correct readings.

18 vs 20 Tires for Towing

The smaller tire seems to be the better of the two. There are several reasons for this. First , the 20 inch tire, is further from the center of the wheel, making it harder for the engine to get going.

Second , the 20 inch gets less mpg than an 18, that is because there is more drag and the engine works harder to move the bigger wheel. A third reason is that the larger wheel provides a smaller air cushion and lower tire side wall and these factors tend to drop the tow rating, Along with ruining your ride comfort.

There is talk where it is predicted that most owners of RV trailers will eventually all go to 16 inch LT tires to increase performance, etc.

Best Winter Tires for Towing

RV use is not limited to just the good weather months of the year. Some RV owners love to or need to use their RVs during the snow season. Winter tires are not the same as summer ones. Here are 3 good winter tires to consider when you are planning your next snow trip:

• Firestone Winterforce LT 225/75-17E Tire- Has a very aggressive tread that is made to handle heavy snow. This gives you more traction when you need it
• Goodyear Wrangler SilentArmor Radial Tire- you can use this tire on or off the road and it works well in light or heavy snow. Great traction and stability
• 225/75R16 Pirelli Scorpion Tire- for best results use with a 1/2 or 3/4 ton pick up truck. It has great braking power and independent tread blocks

What Load Rating Tires for Towing

Watching the load rating is very important when buying tires for your tow vehicle or trailer. The load rating is the maximum amount of weight each tire can carry safely. You can find the load rating for your stock tires in your vehicle’s owner manual.

If the tire has the letter P on it, that means it is load rated for passenger vehicles. If it says LT, then you know that tire is rated for light trucks. But there is another system in play here.

You might find one of the letters of the alphabet on your tire, say D or E and so on. Since D is the fourth letter, you multiply 4 by2 to find that a D load rated tire is equal to a 8 ply tire,. An E is equal to a 10 ply tire.

To get the right load rating it may be best to stick with the stock tires and their size. If you want you can check the chart below to  help you decide.

What Type of Tires for Towing

There are a lot of tires that will handle your towing needs. The key to finding the right tires is not only looking at the examples listed above but looking at how much weight you will be towing.

Other factors include the season you will be doing your towing, the distance you will be traveling and how much you want to spend. Also, if you are using a pick up truck to do the towing, it is best to go with a tire that is rated for light trucks,

Here are 2 more good tire types to consider:

• Goodyear Marathon Radial Tires- provides constant tire and road contact which gives you maximum stability
• Michelin LTX A/S Tires- can be used in all conditions, they have high durability as well as having a lifespan of about 65,000 miles

In the end, the tires you use will be up to your preference. Check with a reputable tire dealer to make sure you are getting the right tire for your towing vehicle.

Are LT Tires Better for Towing

The short answer is yes they are. That is because the P or passenger model tire is not designed for SUVs or light trucks. They are designed for passenger vehicles. Now some people may consider an SUV a passenger vehicle but they are closer to a pick up truck than a car.

When you are using a pick up truck or an SUV to tow your RV trailer, then the best tire to use would be an LT series tire. That is because those tires are specifically made for SUVs and light trucks.

Also, you should stay with the stock tire size that came with the vehicle when it was new.

Do I Need E Rated Tires

You do not need an E rated tire to tow your RV trailer. It is just that you may want to have it on your vehicles because the performance of the E rated tire is superior to the C or D rated models.

To get a good ride, you may need to inflate them to 50 or 60 psi but that is up to you and the amount of load you are towing. A lot is going to depend on how you want to ride. Differently rated tires offer different types of rides.

What makes the E rated tire the best is that it can handle heavier rigs or a heavier load than the C or the D rated versions.

Are Low Profile Tires Good for Towing

Not necessarily and the reason for this is that they do not have a lot of flexibility as other tires. Another reason is that there is little sidewall cushion available to absorb impacts.

Then they are not designed to hold a lot of weight. Also, these tires are designed more for show than they are top perform on the road. With all of that said, there are RV users and towers who have had great experiences with their low profile tires . They claim they get better turning control.

One thing to consider is will you be able to find a replacement if you have a tire problem? You never know what is going to happen on the road and you will at some point be looking for a replacement tire. This situation needs to be considered prior to purchasing low profile tires.

Are Michelin Tires Good for Towing

A lot will depend on your preference and experiences with the Michelin brand but all those subjective thoughts aside, Michelin tires are good for towing . You can get long life out of them, they have solid tread and they ride well .

What may give Michelin tow tires a bad reputation would be the expectation of the owners. They want the tires to last a very long time no matter how much weight they put on their trucks.

Or they drive down a lot of bad roads and expect the tires to hold up under extreme conditions like they were doing soft highway models. You really can’t go wrong with Michelin and they have recently updates some of their tire models and improved their performance.

Are Toyo Tires Good for Towing

This tire brand is a little cheaper than Michelin but the price is not always an indicator of quality. They also may work better for some trailer towers than others. It is said that they wear well and the tread can last over 45, 000 miles.

Also, they seem to have good traction in the snow, the only thing you have to be concerned about is the amount of nose between Toyo models . Some are louder than others, while others are heavier than their counterparts and can lower your mpg

The other thing you have to watch out for is that not every tire that comes off the assembly line is going to be perfect and like all the rest of the tires in its batch. Some people will inadvertently buy those tires and receive a very inferior performance and result.

Some Final Comments

When it comes to towing an RV trailer, you really need to be concerned about where and how the rubber hits the road. You want great tires that will perform well under any condition, help improve your fuel economy, while lasting you along time.

The letters and numbers on tires are there for a reason,. Make sure you learn about them and what they mean. This will help your tire selection and get the right tires for both your tow vehicle and your trailer.

Also, you will need to learn about load capacity and how it affects your tires. Not all tires are made the same thus they do not all carry the same heavy burden. Educating yourself about RV tow tires is a great way to protect yourself and your family while on the road.

Related Posts

How Long Do 22.5 Tires Last? (Truck Tire Life Expectancy)

Can You Put a Weight Distribution Hitch On a Lifted Truck?

Can a 1500 Pull a 5th Wheel? (Half-Ton Ram, Sierra, Silverado)

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Step 4—RV and Tow Vehicle Tire Inflation Procedures and Load Charts

After completing Step 3, the Weight Safety Report, it's important that the RV load distribution is adjusted, if necessary, and adjust tow vehicle and trailer tire inflation pressure per the current recommendations.

Jump to "Selecting the Correct Tire Pressure for Tow Vehicles and Motorized RVs"

Selecting the correct tire pressure on multi-axle trailers.

After much consultation with 40-year veteran tire engineer Roger Marble , Fifth Wheel Street no longer recommends adjusting trailer tire inflation pressure below the pressure associated with maximum load PSI rating molded on the sidewall (and only if the wheel/rim is appropriately rated) for tires that have a maximum of 85 PSI or less, regardless of the measured scaled weight of individual tire or axle positions for all multi-axle trailers. RV trailer owners with tires greater than 85 PSI max rating can use the manufacturer's tire load charts below and add a 25% margin. For trailers with max cold air pressure greater than 85 PSI, until the trailer has been weighed, never inflate less than the manufacturer label or the max cold air pressure molded on the tire.

However, we strongly recommend weighing individual trailer tire positions for the trailer and the tow vehicle or motorcoach to ensure none of the axles or tire positions are overloaded. Reports have shown that trailers do not have equal weight across all tire positions. Some RV load configurations may reveal as much as 20% difference between the front and rear axle. This is especially true for Toy Haulers. A mismanaged trailer load distribution may cause one end of an axle or tire to be overloaded and could exceed 100 pounds on one tire. It has been stated, but never confirmed by any RV Weigh-master, that many RVs are traveling on the road with at least one tire or axle side overloaded. The only way to ensure tires and or axles are not overloaded is to weigh each tire position on your vehicles.Unfortunately, obtaining accurate individual tire position weight is practically impossible at all truck scales. Please view a list of recommended RV Weigh-masters here .

"Interply Shear on tires in trailer application needs to be considered as this is a major contributor to trailer tire belt separations." Roger Marble

Our recommendation for all tires on multi-axle trailers:

The pressure associated with a maximum load of 85 PSI or less should be inflated no less than the PSI indicated as follows:

Option One:  Per the minimum tire requirement stated on the vehicle's Certification Label.

Option Two: No less than the tire's cold PSI molded on the tire's sidewall associated with max load and not exceeding the wheel/rim PSI rating for tires with a max of 85 PSI or less.

Here's the reason in 50 seconds.

"Interply Shear" and other Techno Babble by Roger Marble (Edited for clarity.)

Bottom line... FIRST

Engineer Speak and Techno Babble

If you own a multi-axle trailer, tire bending forces can be much higher than those seen on a tow vehicle, motorhome or car. Tires on these types of vehicles are not close together and are located at the corners of the vehicle.

Special consideration for multi-axle trailers. Warning, this gets technical.

When not driving in a straight line, there are significant side loads on multi-axle trailers because the tires are fighting each other; this is because the axles are not "pointed" to the center of the radius of the turn. These loads cause interior structural tearing. Sometimes, loads may be 20% or more higher than those seen in tires on non-trailer applications. Initially, tearing begins at the microscopic level, but with time and repeated cycles, these microscopic tears grow, which can lead to small cracks at the belt edges as seen here at the arrows.

If not spotted, these cracks continue to grow to almost the full width of the tread as seen below.

You can lower these forces by either decreasing the load by at least 20% on the tire (probably not something you want to do or may not be able to do) or you can increase the inflation to stiffen the structure which will decrease the slip-angle. In this case, you could increase the tire inflation from the minimum inflation needed for the static load to the inflation associated with the max tire load as molded on the tire sidewall. BUT, you need to be sure you are not exceeding the max rating of the wheel/rim.

Therefore, the best recommendation I can give to trailer owners is to run the max inflation molded on the tire sidewall . For owners of a tow vehicle or motorhome, I recommend you run the inflation needed to carry the actual measured tire load plus at least a 25% margin.

Additional reading available at Roger Marble's blog: What should trailer owners do? WARNING - Super Technical Post Tire failure and Interply Shear "Blowout" A Real Life Experience How to prepare for and respond to tire failure

Before retiring, Roger spent 40 years in the tire industry working for a major manufacturer developing tires for applications in North, Central and South America. During his career he worked on many kinds of tires - heavy truck, passenger, light truck and Indy-car types. If you have a question for Roger, email him at tireman9(at)gmail.com. Also, visit his blog for additional RV tire safety information at RV Tire Safety .

• Never exceed the maximum load rating molded on the tire's sidewall.
• Never exceed the maximum rated speed of 65 MPH for most Special Trailer (ST) tires. FWS recommends towing no more than 60 MPH with most ST tires installed. (There are some companies providing ST tires with a higher speed rating.)
• Never exceed the maximum inflation rating for the wheels/rims or valves when setting the tire cold inflation pressure.
• Never inflate tires more than 10 PSI above the maximum PSI rating imprinted on the sidewall.
• Never install tires rated less than required per the Certification Label.
• Never consider an anticipated temperature change during the day's travel when setting the morning cold inflation pressure.
• Inflating tire pressure above the tire's sidewall rating does not increase the load rating.

Note: RV expert, Mark Polk, wrote an excellent article about using LT tires on trailers. Read it here .

Do you have a letter speed rating imprinted on your tire's sidewall? Click on this link to view a speed rating chart: Speed Ratings

RV Tire Load Inflation Charts

Power King Towmax (BlowMax!)

Selecting the Correct Tire Pressure for Tow Vehicles and Motorized RVs

A note from the founder: Many trucks have labels recommending two tire inflations for when it is unladen and laden. For many applications, the recommended tire inflation for laden trucks is usually more than is required. When truck tires are inflated more than is necessary to carry the actual load, the center of the tire tread bulges out more, therefore places mostly the center portion of the tread on the road surface. Reduced tread contact is not desirable in any situation.

After experiencing center tread wear out on my truck’s OEM tires, that is when I began to pay more attention to tire inflation. Even with 3,400 pounds of added pin weight on the rear axle, that was not enough to cause the tread to make full contact on the road surface when inflated to the label recommended 65 PSI. For this reason, I encourage you to use the 4-Step Weight Safety Plan, and from that, you can obtain the unladen and laden weights. Use the load charts below to correctly set the tire inflation pressure based on the measured weights.

Caution: The recommendation below is a starting point. Without the ability of weighing each axle end on a scale, it's possible that one of the tire loads is significantly greater than the calculated average. Always monitor tire wear and adjust inflation pressure accordingly. Whenever possible, weigh all tire positions at each end of the axles. For weighing purposes, dually tires on each end of an axle is considered one position. To learn more about irregular tire wear patterns and measuring and recording tire wear, click here .

Roger Marble of RV Tire Safety recommends additional 10% PSI for Class A vehicles and other tow vehicles.

Item "A," Total Front Axle Weight: 4900 pounds

Number of tires on the front axle: 2

Truck tire size: LT235/80R17

4,900 divided by 2 = 2450 (round up any fraction)

On the LT235/80R17 tire chart the next weight range is 2545 (Read the "SINGLE" line.)

The starting tire inflation pressure is 60 PSI.

Item "B," Total Rear Axle Weight: 7000 pounds

Number of tires on the rear axle: 4 (dually axle)

7,000 divided by 4 = 1750 (round up any fraction)

On the LT235/80R17 tire inflation chart the next weight range is 1870 (Read the "DUAL" line.)

The starting tire inflation pressure is 45 PSI.

Truck Tire Inflation Tables

For BFGoodrich tires, use Michelin Inflation Tables

Firestone Truck Tire Data Book

Michelin Truck Tire Data Book

Read Roger Marble's full writeup and how-to calculate the PSI for motorhomes here .

Jump to "Selecting the Correct Tire Pressure on Multi-axle Trailers"

Do you want to know if your tires were made in the good ol' usa or, maybe you need to check if your tires are on a recall list..

TIRE RECALL LOOKUP

TIRE MANUFACTURE LOOKUP

Did you know...

That 42 percent of drivers are unable to identify the low-tire-pressure warning light in the gauge cluster.

The National Highway Traffic Safety Administration (NHTSA) has found that under inflated tires are the cause in an estimated 200,000 accidents, 33,000 injuries and 660 deaths each year. Almost as bad, an equal percentage of those polled admitted to rarely checking the air pressure in their tires. This would indicate that nearly half of all drivers on the road don’t recognize the TPMS warning light and aren't regularly checking their tire pressures.

Driving with properly inflated tires makes vehicles safer and more efficient, and tire pressure monitoring systems (TPMS) are designed to help alert drivers to under inflated tires. Read the full report here.

8Muddypaws says that the RV Tow Check App should be called the

"rv sales bs detector.".

FWS Recommended TPMS

Install your app now , rv business advertisers click here.

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