GMC · 1984–1988 · Diesel
GMC Pickup Diesel MPG by year
The EPA has rated 5 model years of the GMC Pickup Diesel, from 1984 to 1988. The most fuel-efficient year is the 1984, at 20 MPG combined in its best configuration. The best 1988 model is 5% less efficient than the best 1984 model (19 vs. 20 MPG). The 1988 model is 12% more efficient than the median full-size pickup that year (19 vs. 17 MPG).
Combined MPG by model year
- Pickup Diesel, 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 Pickup Diesel model year
| Year | Type | Best combined | City / Hwy | Class median | Range | Configs | Fuel / yr |
|---|---|---|---|---|---|---|---|
| 1988 | Diesel | 19 MPG lowest 16 |
17 / 23 | 17 | — | 6 | $2,921 |
| 1987 | Diesel | 19 MPG lowest 16 |
18 / 22 | 17 | — | 7 | $2,921 |
| 1986 | Diesel | 19 MPG lowest 16 |
17 / 22 | 17 | — | 8 | $2,921 |
| 1985 | Diesel | 19 MPG lowest 15 |
18 / 22 | 16 | — | 9 | $2,921 |
| 1984 | Diesel | 20 MPG lowest 17 |
18 / 22 | 17 | — | 10 | $2,775 |
Fuel cost uses today's default prices for every year so model years compare like for like. Sort any column.
Compare Pickup Diesel model years
See how much a newer Pickup Diesel would save over an older one.
Models similar to the GMC Pickup Diesel
Other GMC Pickup versions
Frequently asked questions
Which GMC Pickup Diesel year has the best fuel economy?
The 1984 GMC Pickup Diesel, rated up to 20 MPG combined. At 15,000 miles a year with $3.70/gal diesel fuel, that works out to about $2,775 a year.
Which GMC Pickup Diesel year has the worst fuel economy?
The 1985 model, whose most efficient version is rated 19 MPG combined (about $2,921 a year to fuel).
What is the fuel economy of the latest GMC Pickup Diesel?
The 1988 GMC Pickup Diesel is rated up to 19 MPG combined.