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GMC S15 Cab Chassis MPG

EPA fuel economy for 16 GMC S15 Cab Chassis trims sold from 1984 to 1988. Best ever: 17 MPG (1987 S15 Cab Chassis 2WD). Latest model year 1988: 14 MPG combined across 2 trims.

17best combined MPG (1987)
17 / 17city / highway of the best trim
13lowest combined MPG (1987)
5model years rated
$4,460a year to fuel, cheapest 1988 trim at EPA prices

GMC S15 Cab Chassis fuel cost calculator

Enter what you pay for fuel and how far you drive in a year. The starting prices are the ones the EPA uses for its own yearly fuel-cost estimates. Every cost on this page updates as you type.

At $4.16 a gallon for regular and 15,000 miles a year, every 1988 GMC S15 Cab Chassis trim costs about $4,460 a year to fuel.

1988 trimEngineTransmissionDriveFuelCombCost/yrvs cheapest
S15 Cab Chassis 2WD2.8 L, 6 cylAuto 4-spdRWDRegular14$4,460cheapest
S15 Cab Chassis 2WD2.8 L, 6 cylManual 4-spdRWDRegular14$4,460cheapest

Cost per year is miles per year divided by the EPA combined rating, times your fuel price; electric vehicles use the EPA's kWh per 100 miles instead. Rounded to the nearest $10. Your prices are kept in this browser only.

GMC S15 Cab Chassis MPG by year

YearBest combinedCityHwyBest trim that yearTrims
1988141415S15 Cab Chassis 2WD, 2.8 L, 6 cyl, Auto 4-spd2
1987171717S15 Cab Chassis 2WD, 2.5 L, 4 cyl, Manual 4-spd3
1986171718S15 Cab Chassis 2WD, 2.5 L, 4 cyl, Manual 4-spd3
1985171717S15 Cab Chassis 2WD, 2.5 L, 4 cyl, Manual 4-spd4
1984151516S15 Cab Chassis 2WD, 2.0 L, 4 cyl, Manual 4-spd4

Every GMC S15 Cab Chassis trim

YearTrimEngineTransmissionDriveFuelCityHwyCombCO2 g/miFuel cost/yr
1988S15 Cab Chassis 2WD2.8 L, 6 cylAuto 4-spdRWDRegular141514635$4,460
1988S15 Cab Chassis 2WD2.8 L, 6 cylManual 4-spdRWDRegular141414635$4,460
1987S15 Cab Chassis 2WD2.5 L, 4 cylManual 4-spdRWDRegular171717523$3,670
1987S15 Cab Chassis 2WD2.8 L, 6 cylAuto 4-spdRWDRegular121413684$4,800
1987S15 Cab Chassis 2WD2.8 L, 6 cylManual 4-spdRWDRegular131413684$4,800
1986S15 Cab Chassis 2WD2.5 L, 4 cylManual 4-spdRWDRegular171817523$3,670
1986S15 Cab Chassis 2WD2.8 L, 6 cylAuto 4-spdRWDRegular121413684$4,800
1986S15 Cab Chassis 2WD2.8 L, 6 cylManual 4-spdRWDRegular131413684$4,800
1985S15 Cab Chassis 2WD2.5 L, 4 cylManual 4-spdRWDRegular171717523$3,670
1985S15 Cab Chassis 2WD2.8 L, 6 cylAuto 4-spdRWDRegular141414635$4,460
1985S15 Cab Chassis 2WD2.8 L, 6 cylAuto 4-spdRWDRegular131413684$4,800
1985S15 Cab Chassis 2WD2.8 L, 6 cylManual 4-spdRWDRegular121513684$4,800
1984S15 Cab Chassis 2WD2.0 L, 4 cylManual 4-spd2WDRegular151615592$4,160
1984S15 Cab Chassis 2WD2.8 L, 6 cylAuto 4-spd2WDRegular131514635$4,460
1984S15 Cab Chassis 2WD2.8 L, 6 cylAuto 4-spd2WDRegular131313684$4,800
1984S15 Cab Chassis 2WD2.8 L, 6 cylManual 4-spd2WDRegular131413684$4,800

CO2 is tailpipe grams per mile from the EPA test. Fuel cost per year uses the prices and miles in the calculator above (the EPA's own prices and 15,000 miles a year until you change them); blank when the fuel has no price here (hydrogen, natural gas).

Compare with other 1988 Special Purpose Vehicle 2WD

VehicleCombinedCityHwy
1988 Chevrolet S10 Blazer 2WD221926
1988 GMC S15 Jimmy 2WD221926
1988 Dodge Caravan/Grand Caravan/Ram Van 2WD211826
1988 Jeep Cherokee 2WD211924
1988 Plymouth Voyager/Grand Voyager 2WD211826
1988 Ford Bronco II 2WD191722

All Special Purpose Vehicle 2WD ranked by MPG

Questions people ask

What is the best MPG for a GMC S15 Cab Chassis?

The most efficient GMC S15 Cab Chassis the EPA has rated is the 1987 S15 Cab Chassis 2WD at 17 MPG combined (17 city, 17 highway).

What MPG does the 1988 GMC S15 Cab Chassis get?

Every 1988 GMC S15 Cab Chassis trim is rated 14 MPG combined.

Which GMC S15 Cab Chassis has the worst fuel economy?

The 1987 S15 Cab Chassis 2WD is the lowest rated at 13 MPG combined.

How much does it cost to fuel a GMC S15 Cab Chassis for a year?

At $4.16 a gallon for regular and 15,000 miles a year, every 1988 GMC S15 Cab Chassis trim costs about $4,460 a year to fuel.

More from GMC: every GMC model. Fuel types on this model: Regular. EPA classes: Special Purpose Vehicle 2WD, Special Purpose Vehicles.