← all 1988 GMC S15 Pickup 2WD trims
1988 GMC S15 Pickup 2WD — 2.5L 4-cyl, Automatic 4-spd, RWD
This 1988 GMC S15 Pickup 2WD (2.5L 4-cyl, Automatic 4-spd, RWD) takes regular (87-octane) gasoline. REGULAR
21
MPG combined (18 city / 26 hwy)
$2,950
est. fuel cost / year (EPA, 15k mi)
—
tailpipe CO₂
Other 1988 GMC S15 Pickup 2WD trims
| Trim | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| 2.5L 4-cyl, 5-spd manual, RWD | REGULAR | 23 | $2,700 |
| 2.8L 6-cyl, 4-spd manual, RWD | REGULAR | 19 | $3,300 |
| 2.8L 6-cyl, 5-spd manual, RWD | REGULAR | 19 | $3,300 |
| 2.8L 6-cyl, Automatic 4-spd, RWD | REGULAR | 18 | $3,450 |
| 4.3L 6-cyl, Automatic 4-spd, RWD | REGULAR | 18 | $3,450 |
EPA fuel type: Regular · class: Small Pickup Trucks · retrieved 2026-06-14.