← all 1998 Pontiac Grand Prix trims
1998 Pontiac Grand Prix — 3.1L 6-cyl, Automatic 4-spd, FWD
This 1998 Pontiac Grand Prix (3.1L 6-cyl, Automatic 4-spd, FWD) takes regular (87-octane) gasoline. REGULAR
21
MPG combined (17 city / 27 hwy)
$2,950
est. fuel cost / year (EPA, 15k mi)
—
tailpipe CO₂
Other 1998 Pontiac Grand Prix trims
| Trim | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| 3.8L 6-cyl, Automatic 4-spd, FWD | REGULAR | 21 | $2,950 |
| 3.8L 6-cyl, Automatic 4-spd, FWD | REGULAR | 19 | $3,300 |
EPA fuel type: Regular · class: Midsize Cars · retrieved 2026-06-14.