← all 1988 GMC G15/25 Rally 2WD trims
1988 GMC G15/25 Rally 2WD — 4.3L 6-cyl, Automatic 4-spd, RWD
This 1988 GMC G15/25 Rally 2WD (4.3L 6-cyl, Automatic 4-spd, RWD) takes regular (87-octane) gasoline. REGULAR
16
MPG combined (15 city / 19 hwy)
$3,900
est. fuel cost / year (EPA, 15k mi)
—
tailpipe CO₂
Other 1988 GMC G15/25 Rally 2WD trims
| Trim | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| 4.3L 6-cyl, 4-spd manual, RWD | REGULAR | 15 | $4,150 |
| 5.0L 8-cyl, Automatic 4-spd, RWD | REGULAR | 13 | $4,800 |
| 5.7L 8-cyl, Automatic 4-spd, RWD | REGULAR | 13 | $4,800 |
| 6.2L 8-cyl, 4-spd manual, RWD | DIESEL | 18 | $4,350 |
| 6.2L 8-cyl, Automatic 4-spd, RWD | DIESEL | 17 | $4,600 |
EPA fuel type: Regular · class: Vans · retrieved 2026-06-14.