GMC T15 (S15) Jimmy MPG by year — every rating on record
The GMC T15 (S15) Jimmy has a combined EPA fuel economy rating for 5 model years, from 1984 to 1988. Across those years its best rated version returned 21 mpg (1985) and its thirstiest returned 16 mpg (1985). The EPA record holds 35 configurations for this nameplate, most recently a Special Purpose Vehicles.
In the EPA record this nameplate also appears as T15 (S15) Jimmy and T10 (S10) Blazer. The figures below cover every one of them.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 1984 | 10 | 20 mpg | 17 mpg | #10 of 23 (59th pct) | 4-Wheel or All-Wheel Drive | Regular | Special Purpose Vehicle 4WD |
| 1985 | 9 | 21 mpg | 16 mpg | #2 of 10 (89th pct) | 4-Wheel or All-Wheel Drive | Regular | Special Purpose Vehicle 4WD, Special Purpose Vehicles |
| 1986 | 6 | 21 mpg | 16 mpg | #9 of 27 (69th pct) | 4-Wheel or All-Wheel Drive | Regular | Special Purpose Vehicles |
| 1987 | 6 | 21 mpg | 16 mpg | #9 of 28 (70th pct) | 4-Wheel or All-Wheel Drive | Regular | Special Purpose Vehicles |
| 1988 | 4 | 17 mpg | 17 mpg | #15 of 29 (50th pct) | 4-Wheel or All-Wheel Drive | Regular | Special Purpose Vehicles |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The GMC T15 (S15) Jimmy placed highest in 1985 at #2 of 10, and lowest in 1988 at #15 of 29. It spent 5 of its 5 ranked years in the top half of its class.
Every configuration on record
All 35 configurations EPA lists for this nameplate, newest first.
| Year | Configuration | Engine detail | City | Highway | Combined | Gallons/yr | Barrels/yr | EPA fuel cost/yr | CO2 g/mi | GHG |
|---|---|---|---|---|---|---|---|---|---|---|
| 1988 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular | (FFS) | 15 | 20 | 17 | 676.5 | 17.5 | $3,650 | 522.7647058823529 | n/a |
| 1988 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Manual 4-spd Regular | (FFS) | 15 | 20 | 17 | 676.5 | 17.5 | $3,650 | 522.7647058823529 | n/a |
| 1988 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Manual 5-spd Regular | (FFS) | 15 | 20 | 17 | 676.5 | 17.5 | $3,650 | 522.7647058823529 | n/a |
| 1988 | 4.3L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular | (FFS) | 15 | 20 | 17 | 676.5 | 17.5 | $3,650 | 522.7647058823529 | n/a |
| 1987 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular | (FFS) | 14 | 19 | 16 | 718.8 | 18.6 | $3,900 | 555.4375 | n/a |
| 1987 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Manual 4-spd Regular | (FFS) | 15 | 19 | 16 | 718.8 | 18.6 | $3,900 | 555.4375 | n/a |
| 1987 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Manual 5-spd Regular | (FFS) | 15 | 20 | 17 | 676.5 | 17.5 | $3,650 | 522.7647058823529 | n/a |
| 1987 | 2.5L 4-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular | (FFS) | 17 | 21 | 18 | 638.9 | 16.5 | $3,450 | 493.72222222222223 | n/a |
| 1987 | 2.5L 4-cyl 4-Wheel or All-Wheel Drive Manual 5-spd Regular | (FFS) | 18 | 24 | 20 | 575.0 | 14.9 | $3,100 | 444.35 | n/a |
| 1987 | 2.5L 4-cyl 4-Wheel or All-Wheel Drive Manual 4-spd Regular | (FFS) | 19 | 23 | 21 | 547.6 | 14.2 | $2,950 | 423.1904761904762 | n/a |
| 1986 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular | (FFS) | 14 | 19 | 16 | 718.8 | 18.6 | $3,900 | 555.4375 | n/a |
| 1986 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Manual 4-spd Regular | (FFS) | 15 | 19 | 16 | 718.8 | 18.6 | $3,900 | 555.4375 | n/a |
| 1986 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Manual 5-spd Regular | (FFS) | 15 | 20 | 17 | 676.5 | 17.5 | $3,650 | 522.7647058823529 | n/a |
| 1986 | 2.5L 4-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular | (FFS) | 17 | 22 | 19 | 605.3 | 15.7 | $3,300 | 467.7368421052632 | n/a |
| 1986 | 2.5L 4-cyl 4-Wheel or All-Wheel Drive Manual 5-spd Regular | (FFS) | 18 | 24 | 20 | 575.0 | 14.9 | $3,100 | 444.35 | n/a |
| 1986 | 2.5L 4-cyl 4-Wheel or All-Wheel Drive Manual 4-spd Regular | (FFS) | 19 | 23 | 21 | 547.6 | 14.2 | $2,950 | 423.1904761904762 | n/a |
| 1985 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Manual 5-spd Regular | 2.8L 6-cyl | 14 | 21 | 16 | 718.8 | 18.6 | $3,900 | 555.4375 | n/a |
| 1985 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Manual 4-spd Regular | (FFS) CA model | 15 | 20 | 16 | 718.8 | 18.6 | $3,900 | 555.4375 | n/a |
| 1985 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Manual 4-spd Regular | 2.8L 6-cyl | 15 | 22 | 17 | 676.5 | 17.5 | $3,650 | 522.7647058823529 | n/a |
| 1985 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular | (FFS) CA model | 15 | 20 | 17 | 676.5 | 17.5 | $3,650 | 522.7647058823529 | n/a |
| 1985 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Manual 5-spd Regular | (FFS) CA model | 15 | 21 | 17 | 676.5 | 17.5 | $3,650 | 522.7647058823529 | n/a |
| 1985 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular | 2.8L 6-cyl | 15 | 22 | 18 | 638.9 | 16.5 | $3,450 | 493.72222222222223 | n/a |
| 1985 | 2.5L 4-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular | (FFS) | 18 | 21 | 19 | 605.3 | 15.7 | $3,300 | 467.7368421052632 | n/a |
| 1985 | 2.5L 4-cyl 4-Wheel or All-Wheel Drive Manual 4-spd Regular | (FFS) | 18 | 23 | 20 | 575.0 | 14.9 | $3,100 | 444.35 | n/a |
| 1985 | 2.5L 4-cyl 4-Wheel or All-Wheel Drive Manual 5-spd Regular | (FFS) | 19 | 24 | 21 | 547.6 | 14.2 | $2,950 | 423.1904761904762 | n/a |
| 1984 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Manual 4-spd Regular | 2.8L 6-cyl | 15 | 20 | 17 | 676.5 | 17.5 | $3,650 | 522.7647058823529 | n/a |
| 1984 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Manual 5-spd Regular | 2.8L 6-cyl | 15 | 22 | 17 | 676.5 | 17.5 | $3,650 | 522.7647058823529 | n/a |
| 1984 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Manual 4-spd Regular | (FFS) CA model | 15 | 20 | 17 | 676.5 | 17.5 | $3,650 | 522.7647058823529 | n/a |
| 1984 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Manual 5-spd Regular | (FFS) CA model | 15 | 22 | 17 | 676.5 | 17.5 | $3,650 | 522.7647058823529 | n/a |
| 1984 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular | 2.8L 6-cyl | 15 | 22 | 18 | 638.9 | 16.5 | $3,450 | 493.72222222222223 | n/a |
| 1984 | 2.8L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular | (FFS) CA model | 15 | 22 | 18 | 638.9 | 16.5 | $3,450 | 493.72222222222223 | n/a |
| 1984 | 2.0L 4-cyl 4-Wheel or All-Wheel Drive Manual 4-spd Regular | 2.0L 4-cyl | 18 | 24 | 20 | 575.0 | 14.9 | $3,100 | 444.35 | n/a |
| 1984 | 2.0L 4-cyl 4-Wheel or All-Wheel Drive Manual 5-spd Regular | 2.0L 4-cyl | 18 | 23 | 20 | 575.0 | 14.9 | $3,100 | 444.35 | n/a |
| 1984 | 2.0L 4-cyl 4-Wheel or All-Wheel Drive Manual 4-spd Regular | (FFS) CA model | 18 | 23 | 20 | 575.0 | 14.9 | $3,100 | 444.35 | n/a |
| 1984 | 2.0L 4-cyl 4-Wheel or All-Wheel Drive Manual 5-spd Regular | (FFS) CA model | 17 | 24 | 20 | 575.0 | 14.9 | $3,100 | 444.35 | n/a |
How the rating has moved between model years
Comparing the best-rated configuration of each year. 1 of 2 year-over-year steps improved the top rating.
| Change | Best combined | Delta | Gallons a year at the newer rating |
|---|---|---|---|
| 1984 → 1985 | 20 → 21 mpg | +1 mpg | 548 gal |
| 1987 → 1988 | 21 → 17 mpg | -4 mpg | 676 gal |
What T15 (S15) Jimmy fuel costs over a year
At the EPA's 11,500 miles a year, the 1988 GMC T15 (S15) Jimmy burns 676 to 676 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.
| Pump price | Most efficient | Thirstiest | Spread |
|---|---|---|---|
| $3.00/gal | $2,029 | $2,029 | $0 |
| $3.50/gal | $2,368 | $2,368 | $0 |
| $4.00/gal | $2,706 | $2,706 | $0 |
EPA’s own estimate for the 1988 model year is $3,650 to $3,650 a year in fuel, or $7,000 more than the average new vehicle over five years.
How it compares with other Special Purpose Vehicles
Across the 113 nameplates EPA classifies as Special Purpose Vehicles, the median best combined rating is 21 mpg. At 17 mpg the GMC T15 (S15) Jimmy is 4 mpg below the median, which is worth about $451 a year at $3.50 a gallon.
- All Special Purpose Vehicles rankings — every nameplate in the class, best to worst.
Other GMC nameplates
Every GMC model compared → — all nameplates ranked by best combined rating, with what each one costs a year.