MPG Atlas

Home / Makes / Jeep / CJ

Jeep CJ MPG

EPA fuel economy for 27 Jeep CJ trims sold from 1984 to 1986. Best ever: 21 MPG (1984 CJ7 4WD). Latest model year 1986: 15 to 18 MPG combined across 5 trims.

21best combined MPG (1984)
19 / 24city / highway of the best trim
15lowest combined MPG (1986)
3model years rated
$3,470a year to fuel, cheapest 1986 trim at EPA prices

Jeep CJ 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, the cheapest 1986 Jeep CJ to fuel is the CJ7, 2.5 L, 4 cyl (18 MPG) at $3,470 a year. The CJ7, 4.2 L, 6 cyl (15 MPG) costs $4,160, so the thriftier trim saves $690 a year and $3,450 over five years.

1986 trimEngineTransmissionDriveFuelCombCost/yrvs cheapest
CJ72.5 L, 4 cylManual 4-spd4WD/AWDRegular18$3,470cheapest
CJ72.5 L, 4 cylManual 5-spd4WD/AWDRegular17$3,670+$200
CJ74.2 L, 6 cylManual 5-spd4WD/AWDRegular17$3,670+$200
CJ74.2 L, 6 cylManual 4-spd4WD/AWDRegular16$3,900+$430
CJ74.2 L, 6 cylAuto 3-spd4WD/AWDRegular15$4,160+$690

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.

Jeep CJ MPG by year

YearBest combinedCityHwyBest trim that yearTrims
1986181719CJ7, 2.5 L, 4 cyl, Manual 4-spd5
1985181719CJ7, 2.5 L, 4 cyl, Manual 4-spd9
1984211924CJ7 4WD, 2.5 L, 4 cyl, Manual 4-spd13

Every Jeep CJ trim

YearTrimEngineTransmissionDriveFuelCityHwyCombCO2 g/miFuel cost/yr
1986CJ72.5 L, 4 cylManual 4-spd4WD/AWDRegular171918494$3,470
1986CJ72.5 L, 4 cylManual 5-spd4WD/AWDRegular161717523$3,670
1986CJ74.2 L, 6 cylManual 5-spd4WD/AWDRegular152017523$3,670
1986CJ74.2 L, 6 cylManual 4-spd4WD/AWDRegular151816555$3,900
1986CJ74.2 L, 6 cylAuto 3-spd4WD/AWDRegular151715592$4,160
1985CJ72.5 L, 4 cylManual 4-spd4WD/AWDRegular171918494$3,470
1985CJ72.5 L, 4 cylManual 5-spd4WD/AWDRegular171918494$3,470
1985CJ74.2 L, 6 cylManual 5-spd4WD/AWDRegular152017523$3,670
1985CJ72.5 L, 4 cylManual 4-spd4WD/AWDRegular161717523$3,670
1985CJ72.5 L, 4 cylManual 5-spd4WD/AWDRegular161817523$3,670
1985CJ74.2 L, 6 cylManual 5-spd4WD/AWDRegular151917523$3,670
1985CJ74.2 L, 6 cylManual 4-spd4WD/AWDRegular151816555$3,900
1985CJ74.2 L, 6 cylAuto 3-spd4WD/AWDRegular151716555$3,900
1985CJ74.2 L, 6 cylAuto 3-spd4WD/AWDRegular151715592$4,160
1984CJ7 4WD2.5 L, 4 cylManual 4-spd4WD/AWDRegular192421423$2,970
1984CJ7 4WD2.5 L, 4 cylManual 5-spd4WD/AWDRegular192321423$2,970
1984CJ7 4WD2.5 L, 4 cylManual 5-spd4WD/AWDRegular192321423$2,970
1984CJ7 4WD2.5 L, 4 cylManual 4-spd4WD/AWDRegular182320444$3,120
1984CJ7 4WD2.5 L, 4 cylManual 4-spd4WD/AWDRegular182220444$3,120
1984CJ7 4WD2.5 L, 4 cylManual 4-spd4WD/AWDRegular182220444$3,120
1984CJ8 4WD4.2 L, 6 cylAuto 3-spd4WD/AWDRegular162018494$3,470
1984CJ7 4WD4.2 L, 6 cylManual 4-spd4WD/AWDRegular161817523$3,670
1984CJ7 4WD4.2 L, 6 cylManual 5-spd4WD/AWDRegular162017523$3,670
1984CJ7 4WD4.2 L, 6 cylManual 5-spd4WD/AWDRegular161917523$3,670
1984CJ7 4WD4.2 L, 6 cylAuto 3-spd4WD/AWDRegular151716555$3,900
1984CJ7 4WD4.2 L, 6 cylAuto 3-spd4WD/AWDRegular151716555$3,900
1984CJ7 4WD4.2 L, 6 cylManual 4-spd4WD/AWDRegular151816555$3,900

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 1986 Special Purpose Vehicles

VehicleCombinedCityHwy
1986 Isuzu Trooper252426
1986 Jeep Cherokee/Wagoneer 4WD252426
1986 Suzuki Samurai252327
1986 Subaru Hatchback 4WD232126
1986 Subaru Sedan/3 Door 4WD232126
1986 Subaru Wagon 4WD232126

All Special Purpose Vehicles ranked by MPG

Questions people ask

What is the best MPG for a Jeep CJ?

The most efficient Jeep CJ the EPA has rated is the 1984 CJ7 4WD at 21 MPG combined (19 city, 24 highway).

What MPG does the 1986 Jeep CJ get?

1986 Jeep CJ trims range from 15 to 18 MPG combined, depending on engine, transmission and drivetrain.

Which Jeep CJ has the worst fuel economy?

The 1986 CJ7 is the lowest rated at 15 MPG combined.

How much does it cost to fuel a Jeep CJ for a year?

At $4.16 a gallon for regular and 15,000 miles a year, the cheapest 1986 Jeep CJ to fuel is the CJ7, 2.5 L, 4 cyl (18 MPG) at $3,470 a year. The CJ7, 4.2 L, 6 cyl (15 MPG) costs $4,160, so the thriftier trim saves $690 a year and $3,450 over five years.

More from Jeep: every Jeep model. Fuel types on this model: Regular. EPA classes: Special Purpose Vehicle 4WD, Special Purpose Vehicles.