← all 1984 Pontiac Grand Prix trims
1984 Pontiac Grand Prix — 3.8L 6-cyl, Automatic 3-spd
This 1984 Pontiac Grand Prix (3.8L 6-cyl, Automatic 3-spd) takes regular (87-octane) gasoline. REGULAR
19
MPG combined (17 city / 22 hwy)
$3,300
est. fuel cost / year (EPA, 15k mi)
—
tailpipe CO₂
Other 1984 Pontiac Grand Prix trims
| Trim | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| 3.8L 6-cyl, Automatic 3-spd | REGULAR | 18 | $3,450 |
| 5.0L 8-cyl, Automatic 4-spd | REGULAR | 17 | $3,650 |
| 5.0L 8-cyl, Automatic 4-spd | REGULAR | 17 | $3,650 |
| 5.0L 8-cyl, Automatic 3-spd | REGULAR | 16 | $3,900 |
| 5.0L 8-cyl, Automatic 3-spd | REGULAR | 15 | $4,150 |
| 5.7L 8-cyl, Automatic 3-spd | DIESEL | 21 | $3,700 |
| 5.7L 8-cyl, Automatic 4-spd | DIESEL | 21 | $3,700 |
EPA fuel type: Regular · class: Midsize Cars · retrieved 2026-06-14.