Jeep · 1984–1986 · Gas
Jeep CJ MPG by year
The EPA has rated 3 model years of the Jeep CJ, from 1984 to 1986. The most fuel-efficient year is the 1984, at 21 MPG combined in its best configuration. The best 1986 model is 14% less efficient than the best 1984 model (18 vs. 21 MPG). The 1986 model is 3% more efficient than the median special purpose vehicle that year (18 vs. 17.5 MPG).
Combined MPG by model year
- CJ, most efficient version
- Range across configurations
- Class median
Shaded band: range across that year's configurations. Class median: same-year models in the same class, rated in MPG. Click a point to open that model year; the table below lists every value.
Every CJ model year
| Year | Type | Best combined | City / Hwy | Class median | Range | Configs | Fuel / yr |
|---|---|---|---|---|---|---|---|
| 1986 | Gas | 18 MPG lowest 15 |
17 / 19 | 17.5 | — | 5 | $2,583 |
| 1985 | Gas | 18 MPG lowest 15 |
17 / 19 | 17 | — | 9 | $2,583 |
| 1984 | Gas | 21 MPG lowest 16 |
19 / 24 | 17 | — | 10 | $2,214 |
Fuel cost uses today's default prices for every year so model years compare like for like. Sort any column.
Compare CJ model years
See how much a newer CJ would save over an older one.
Models similar to the Jeep CJ
Frequently asked questions
Which Jeep CJ year has the best fuel economy?
The 1984 Jeep CJ, rated up to 21 MPG combined. At 15,000 miles a year with $3.10/gal regular gas, that works out to about $2,214 a year.
Which Jeep CJ year has the worst fuel economy?
The 1985 model, whose most efficient version is rated 18 MPG combined (about $2,583 a year to fuel).
What is the fuel economy of the latest Jeep CJ?
The 1986 Jeep CJ is rated up to 18 MPG combined.