91 gmc safari fuel mileage

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Fuel Economy & Improving MPG

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Hello everyone! I am interested in what you get for fuel economy with your van(s). I look forward to comparing numbers together and I hope this thread will serve as a resource to pool information and ideas together. If you'd like to contribute, please list : 1.) Average Fuel Economy (MPG) 2.) Year, Model, & Engine Size 3.) Modifications Impacting Fuel Economy 4.) Other Relevant Ideas & Experiences Improving Fuel Economy ~Dylan  

I will start out with listing the info on Brewtus: 1.) 16.2 MPG 2.) 1986 Astro Aerolite & 4.3L V6 TBI 3.) Removing excess weight (pending resulting MPG), removed roof-top attachments, and increased tire pressure. 4.) Taurus electric-fan swap, removal of A/C compressor and associated pulleys, and possibly adding hinged side-skirts for long-distance road trips.  

94 safari 4.3 it gets what it is supposed to. 18 city and 23 freeway.  

My 88 Astro gets 16-18 in the city, and 22 out on the highway. A lot of that is the rear gearing. I only say that, as my wife's 90 GMC Safari would get 14-15 around town, and 18 out on the highway.  

xit said: I have kept fuel records for many years on my astro, if I see a major drop in mileage, I know something needs attention If I average all the data over the years it would be right at 18mpg, highway and city. The milage is not too bad considering the age of the van & it is a box. Keeping my speed close to or lower than posted limit is the biggest factor in my mileage. Click to expand...

90safari said: My 88 Astro gets 16-18 in the city, and 22 out on the highway. A lot of that is the rear gearing. I only say that, as my wife's 90 GMC Safari would get 14-15 around town, and 18 out on the highway. Click to expand...

Don't be fooled! Changing your gearing either direction may move you out of the engine's "sweep spot".. the rpm range where it runs most efficiently AND effectively. Lower RPM (too low under the same load) often means MORE throttle (to maintain speed).. since it takes the same amount of HP to move you down the road regardless of rpm. I know.. been there done that. Often times heavier vehicles (with increased loads) may actually improve mileage with more/correct gear (up to a certain speed). It really depends on how hard you have to ride the throttle to maintain your desired speed. Slowing down (from higher highway speeds) usually will affect mileage.. mostly due to decreased wind load and tire resistance. I can get 18mpg (at slower speeds than I am uncomfortable with). Above 70 the mileage starts taking a harder dive (also depending on wind direction).. I've charted it all. I prefer however, to move with the flow and get there. I improved the mileage in my 92 by replacing the weak and worn V6 with a fresh V8 more suited to moving a van. There is NO one answer fits all  

Mmusicman said: Don't be fooled! Changing your gearing either direction may move you out of the engine's "sweep spot".. the rpm range where it runs most efficiently AND effectively. Lower RPM (too low under the same load) often means MORE throttle (to maintain speed).. since it takes the same amount of HP to move you down the road regardless of rpm. I know.. been there done that. Often times heavier vehicles (with increased loads) may actually improve mileage with more/correct gear (up to a certain speed). It really depends on how hard you have to ride the throttle to maintain your desired speed. Slowing down (from higher highway speeds) usually will affect mileage.. mostly due to decreased wind load and tire resistance. I can get 18mpg (at slower speeds than I am uncomfortable with). Above 70 the mileage starts taking a harder dive (also depending on wind direction).. I've charted it all. I prefer however, to move with the flow and get there. I improved the mileage in my 92 by replacing the weak and worn V6 with a fresh V8 more suited to moving a van. There is NO one answer fits all Click to expand...

1. ~18 2. 95 2wd 4.3 3. E-fan, smooth wheel covers, MPGuino (not sure on tbi, but spider injection needs adapter module to use) 4. Biggest thing you can do is adjust how you drive and get some instrumentation. Aerodynamics is the killer for you. Check out ecomodder.com if you want some ideas. It might sound farfetched, but my best trip (single drive not a tank) was 24 mpg. That was a very rare occurance though. No traffic and I hit all green lights. This required coasting and timing the lights to get. Engine was already warm as well. I have since put a v8 in my van. Now I have adopted the "smiles per gallon" montra x2 that nothing applies the same to each vehicle. Click to expand...

Brewtus said: I dig the mods you've done! How long ago did you find your MPGuino and do you know of anyone still selling them? What type or style of e-fan do you have? Adjustment of driving style is definitely an important aspect, especially with Brewtus haha. I am hoping to get either an MPGuino or SuperMID but have been unable to find a seller yet. I am a fan of ecomodder.com and will definitely be referring to the info on their site throughout the build. 24 MPG sounds great! Lights are such a killer of fuel economy... Your "smiles per gallon" montra is funny haha. Click to expand...

Brewtus said: "smiles per gallon" Click to expand...

M_a_t_t said: I bought it back around 2016. I bought mine through this seller, ( http://mpguino.wiseman.ee/eng ) but it looks like he has closed up shop. There is a schematic for building one on the mpguino wiki page ( https://ecomodder.com/wiki/MPGuino ) if you can follow it. The code is available (should be) for download so you just have to wire it up. If not I have an older version of the code on a google doc you can copy and paste in. I bought the red fans that everyone on here doesn't like. I can't say I would recommend them either, as I don't think mine have been working. I haven't looked into it yet to figure out if there was an installation issue or poor quality. Click to expand...

I saved some of what I could find https://sites.google.com/site/astrosafa ... ne/mpguino  

AstroWill said: I saved some of what I could find https://sites.google.com/site/astrosafa ... ne/mpguino Click to expand...

Brewtus said: 90safari said: My 88 Astro gets 16-18 in the city, and 22 out on the highway. A lot of that is the rear gearing. I only say that, as my wife's 90 GMC Safari would get 14-15 around town, and 18 out on the highway. Click to expand...

I have a '94 short safari RWD, fuel system is TBI. I have owned the vehicle since 1999 it now has ~342,000 miles on it. I consistently got 18 MPG in the summer and 16 MPG winter. this is a mix of city and highway. A couple years ago had to rebuild the distributor. At that time I advanced the timing approximately 2 degrees beyond spec. I now consistently get 18 mpg winter and 20 MPG summer. No other changes were made well unless you count the fact that it is on the Minnesota weight reduction program otherwise known as rust.  

Good stuff,here. Have to go by memory, for some of this. Winter van,94AWD, hi-lo t/case, runs M&S studded tires, also has full time locker. Hard to judge mileage, as have to warm it up before going up and out of driveway, but on trips i took before, lucky to get 12. Biggest reason is the aggressive M&S tires, they cause lots of wind resistance.Summer van,96AWD with full time rear locker, but running mild yokohama snow tires, generally get 16, no matter what.Actually, last summer, on one of my trips, averaged almost 17, 80mph, in all the wind in WY. Some years ago, when i got the summer van, it had highway tires, and, going through Saskatchewan, where the speed limit is very much lower, got almost 22mpg. Tires can be a killer.  

1.) 13mpg 2.) 99 AWD Astro, 4.3L 3.) Lifted 3", 29" all terrains, and aero takes a hit with dished wheels, fender flares/steps, and window visors. That said even without the window visors/flares, I doubt I'd see an improvement since the aero of this thing is so bad. 4.) I have the GT4 gearing... and I think it's shit for an astro. It's too tall. Going up inclines I feel like it doesn't ahve enough torque to stay in overdrive. Whenever I see astro owners brag about getting over 15mpg, they usually have the drive ratio that ups the RPMs/increases torque. Long term I want to swap to V8, so maybe this gearing is better suited for a V8 that has more torque lower in the powerband?  

ADDvanced said: 1.) 13mpg 2.) 99 AWD Astro, 4.3L 3.) Lifted 3", 29" all terrains, and aero takes a hit with dished wheels, fender flares/steps, and window visors.. 4.) I have the GT4 gearing... Long term I want to swap to V8, so maybe this gearing is better suited for a V8 that has more torque lower in the powerband? Click to expand...

astroman92 said: 92 v6 TBI 12-14 city 16 highway would redoing my lack of exhaust help? its a basemodel manual everything still obd1 what can i do to possibly help Click to expand...

92 v6 TBI 12-14 city 16 highway would redoing my lack of exhaust help? its a basemodel manual everything still obd1 what can i do to possibly help  

Mmusicman where did you get that grill?  

HotBananas said: 4.) I haven't done anything that will really negatively impact my fuel economy much. I'm looking to get it up another inch or so and get some bigger tires on it within the next 1 or 2 years. Click to expand...

The slower you drive, the LESS negative impact lift and taller tires might have. Tread patterns play a big role in fuel economy too Personally, I lost a lot of mileage with my lift and taller tires, but then picked it back up with LT highway touring tires. I also do a lot of high-speed interstate driving.. so everything impacts me even more, one way or the other.  

Brewtus said: Hello everyone! I am interested in what you get for fuel economy with your van(s). I look forward to comparing numbers together and I hope this thread will serve as a resource to pool information and ideas together. If you'd like to contribute, please list : 1.) Average Fuel Economy (MPG) 2.) Year, Model, & Engine Size 3.) Modifications Impacting Fuel Economy 4.) Other Relevant Ideas & Experiences Improving Fuel Economy ~Dylan Click to expand...

shlob flop said: 1) Not to sure on highway or local but I’d say 7-10 MPG and 2/3 on highway say about driving at 70-85mph at a few nights mostly local 40mph 2) 1998, LS Rwd, 4.3 v6 had removed the both single seats in the middle, replaced the whole cooling system, fresh new oil and fluids, new fuel/oil/trans filter, break pads, running on different tires, refueling every week about $70. Click to expand...

shlob flop said: what can i do to improve my MPG!!! Click to expand...

Mmusicman said: The slower you drive... Click to expand...

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5 Best & Worst GMC Safari Years (We Checked)

The GMC Safari has had its ups and downs over the years, with various models providing standout features and performance.

Table of Contents

While some years of the Safari delivered reliable service, others faced challenges and attracted some criticism from drivers and experts alike.

This article aims to discuss the best and worst years of the GMC Safari, helping potential buyers make an informed decision when looking to purchase this versatile minivan.

The Best Year for GMC Safari

One of the standout years for the GMC Safari was 2003.

This model received positive reviews for its reliability and durability. Many owners reported putting well over 200,000 miles on the vehicle with minimal maintenance required.

The 2003 GMC Safari was available in both rear-wheel-drive and all-wheel-drive configurations, catering to different needs and preferences.

The 2003 Safari came with a 4.3L V6 engine, offering a good balance of power and fuel efficiency, which was especially impressive for its time. This engine was paired with a 4-speed automatic transmission that provided a smooth driving experience and responsive handling.

In terms of interior features, the 2003 GMC Safari provided ample space for passengers and cargo, as well as various seating configurations to suit different requirements. These features, along with the overall comfortable design, made it suitable for families and businesses alike.

Safety features were also a strong focus in the 2003 model year, with standard equipment such as 4-wheel disc brakes with ABS, driver and passenger airbags, and daytime running lights. These safety enhancements provided added peace of mind for drivers and passengers on their journeys.

Check also the best and worst years for the GMC Canyon pickup .

The 2nd Best Year

The 2001 GMC Safari deserves recognition as the second-best model year for this classic van. While it didn’t receive quite as many accolades as later years, this model still offers reliability and solid performance.

Shoppers can expect to find features such as:

• A potent 4.3L V6 engine delivering 190 horsepower and 250 lb-ft of torque
• A smooth-shifting 4-speed automatic transmission with overdrive
• A maximum tow rating of 5,800 pounds, allowing for versatile hauling capabilities

Despite a few minor drawbacks, the 2001 GMC Safari excelled in a number of areas. With more than respectable fuel economy, owners could expect to achieve up to 16 mpg in the city and 21 mpg on the highway—a notable perk for those prioritizing efficiency.

Safety-wise, this model year showcased improvements over previous years. Although not considered exceptional, it scored better in crash tests compared to earlier models. Standard safety features included antilock brakes, and GM’s Passlock theft-deterrent system provided an added layer of protection.

One thing the 2001 Safari truly excelled in was cargo space. With a cavernous interior, owners could easily accommodate up to 170.4 cubic feet of luggage, making the van a top choice for families or those embarking on long road trips.

While not as highly praised as newer models, this particular year remains a noteworthy option and good value for used car shoppers looking for reliability and performance to boot.

Check also the best and worst years for GMC Jimmy (SUV) .

Other Good Years

As we dive into the GMC Safari’s history, let’s take a look at some other good years for this popular van.

Here’s a list of additional standout years, with brief explanations as to what made them great:

• 2004 GMC Safari : This model year continued to offer the reliable 4.3-liter V6 engine, and it maintained a strong reputation for durability and dependability. Additionally, the 2004 Safari featured comfortable seating and ample cargo space, providing a versatile option for both families and businesses.
• 2005 GMC Safari : As the final production year for the Safari, the 2005 model continued to deliver on the strengths of its predecessors. With its trusty V6 engine and spacious interior, this model remained a practical choice for those in search of a reliable van.

These GMC Safari model years were known for their solid performance and dependability, ensuring that they remain an excellent choice for anyone considering a robust and versatile vehicle.

Problematic Year for GMC Safari

The 1996 GMC Safari, while generally a reliable vehicle, has been associated with certain common issues that potential owners or current owners should be aware of.

One of the most reported problems for this model year revolves around the fuel system. Some owners have experienced fuel pump failure, which can lead to the vehicle stalling or not starting at all. The issue typically emerges after a significant mileage, and the only solution is to replace the fuel pump, which can be a relatively expensive repair.

Engine problems are another area of concern for the 1996 GMC Safari.

These include issues like the “Check Engine” light frequently coming on, misfiring, or engine stalling. In several cases, these problems were traced back to issues with the ignition system, such as a faulty ignition coil or a worn-out distributor cap and rotor. Fixing these problems typically involves replacing the faulty components, which, while not overly expensive, can add to maintenance costs over time.

Transmission failures have also been reported with this model, some occurring at relatively low mileages for a transmission issue.

Transmission replacement or rebuild is a significant expense and can be quite a headache for the vehicle’s owner. Symptoms of a failing transmission can include difficulty shifting gears, the transmission slipping out of gear, or a whining or humming noise. If these symptoms are experienced, it is crucial to get the vehicle to a mechanic as soon as possible to prevent further damage.

The 1996 GMC Safari has also had issues with the power door locks not working correctly, which, while less serious than engine or transmission issues, is still a significant inconvenience for owners. The cause is usually a faulty door lock actuator that needs to be replaced.

Lastly, some owners have reported issues with the van’s exterior lighting.

These problems range from the headlights going out intermittently to the brake lights not functioning correctly, posing a potential safety risk.

It’s important to note that while these issues have been reported, they do not affect every 1996 GMC Safari.

Many owners have had minimal problems and have found the van to be reliable. However, if you’re considering purchasing a used 1996 GMC Safari, or if you’re a current owner experiencing unexplained issues, these are areas you might want to investigate.

Remember, regular maintenance and prompt attention to any problems that arise can go a long way toward extending the life of any vehicle.

Common Problems to Look for in Used GMC Safaris

These vans are known for their durability, but they do have some common issues as well. Watch out for these problems when browsing for a used GMC Safari:

ABS Light Due to Brake System Control Unit Failure: This issue has been reported by 74 people, and it affects the ABS system in your van. While driving, you might notice your anti-lock braking system failing, especially at low speeds.

Outside Door Handles May Break: A total of 70 people have reported this issue. The door handles might show signs of wear, and, in some cases, they can break completely.

Door Locks Stop Working: 62 individuals have reported this issue with their GMC Safaris. The doors may become difficult to lock and unlock, causing inconvenience and potential security risks.

Besides these commonly reported issues, there are some other concerns like brake booster and rotor problems, which are frequently mentioned by owners. While looking for a used GMC Safari, make sure to thoroughly inspect these areas and confirm the vehicle’s service history to avoid purchasing a van with recurring issues.

Go Back: Best & Worst data on all Chevrolet models .

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ⓘ  The information in this article is based on data from National Highway Traffic Safety Administration (NHTSA) recall reports, consumer complaints submitted to the NHTSA, reliability ratings from J.D. Power, auto review and rating sites such as Edmunds, specialist forums, etc. We analyzed this data to provide insights into the best and worst years for these vehicle models.

Used 1991 GMC Safari - Specs & Features

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• 1997 GMC Safari
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1997 GMC Safari MPG

Based on data from 8 vehicles, 351 fuel-ups and 93,468 miles of driving, the 1997 GMC Safari gets a combined Avg MPG of 18.29 with a 0.32 MPG margin of error.

Below you can see a distribution of the fuel-ups with 27 outliers (7.14%) removed.

Following shows the average MPG of each of the 8 vehicles in the system.

1997 GMC Safari SLT 4.3L V6 GAS Automatic 4 Speed Added Sep 2014 • 322 Fuel-ups

• 18.9 Avg MPG

Service van

1997 GMC Safari SLX 4.3L V6 GAS Automatic 4 Speed Standard Passenger Van Added Jun 2017 • 18 Fuel-ups

• 13.6 Avg MPG

1997 GMC Safari SLE 4.3L V6 GAS Automatic 4 Speed Added Jul 2017 • 14 Fuel-ups

• 16.2 Avg MPG

GMC Safari Van

1997 GMC Safari SLE 4.3L V6 GAS Automatic 4 Speed Standard Passenger Van Added Oct 2014 • 25 Fuel-ups

• 15.3 Avg MPG

1997 GMC Safari SLX ٤٫٣L V6 GAS Automatic 4 Speed Standard Passenger Van Added Oct 2017 • 8 Fuel-ups

• 8.0 Avg MPG

1997 GMC Safari SLX 4.3L V6 GAS Automatic 4 Speed Added Sep 2016 • 12 Fuel-ups

• 18.1 Avg MPG

Ron Bergundy

1997 GMC Safari GAS V6 Added Sep 2013 • 3 Fuel-ups

• 16.9 Avg MPG

1997 GMC Safari GAS V6 Added Sep 2009 • 6 Fuel-ups

• 13.9 Avg MPG
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• mototramper added 1 notes for their 2004 GMC Safari . 5 days ago
• mototramper fueled-up their 2004 GMC Safari . Last Tank: 19.1 MPG 4 weeks ago

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1996 GMC Safari

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