← all 1991 Pontiac Grand Prix trims
1991 Pontiac Grand Prix — 3.4L 6-cyl, 5-spd manual, FWD
This 1991 Pontiac Grand Prix (3.4L 6-cyl, 5-spd manual, FWD) takes regular (87-octane) gasoline. REGULAR
18
MPG combined (15 city / 24 hwy)
$3,450
est. fuel cost / year (EPA, 15k mi)
—
tailpipe CO₂
Other 1991 Pontiac Grand Prix trims
| Trim | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| 2.3L 4-cyl, Automatic 3-spd, FWD | REGULAR | 21 | $2,950 |
| 3.1L 6-cyl, Automatic 4-spd, FWD | REGULAR | 20 | $3,100 |
| 3.4L 6-cyl, Automatic 4-spd, FWD | REGULAR | 18 | $3,450 |
EPA fuel type: Regular · class: Midsize Cars · retrieved 2026-06-14.