1984 Pontiac Grand Prix
8 configurations — EPA fuel economy ratings
| Trim / Variant | City MPG | Hwy MPG | Combined MPG | Fuel | Drive | Engine | Transmission |
|---|---|---|---|---|---|---|---|
| Grand Prix | 18 | 27 | 21 | Diesel | — | 5.7L 8-cyl | Automatic 4-spd |
| Grand Prix | 14 | 18 | 15 | Regular Gasoline | — | 5L 8-cyl | Automatic 3-spd |
| Grand Prix | 15 | 21 | 17 | Regular Gasoline | — | 5L 8-cyl | Automatic 4-spd |
| Grand Prix | 17 | 22 | 19 | Regular Gasoline | — | 3.8L 6-cyl | Automatic 3-spd |
| Grand Prix | 18 | 25 | 21 | Diesel | — | 5.7L 8-cyl | Automatic 3-spd |
| Grand Prix | 15 | 21 | 17 | Regular Gasoline | — | 5L 8-cyl | Automatic 4-spd |
| Grand Prix | 15 | 19 | 16 | Regular Gasoline | — | 5L 8-cyl | Automatic 3-spd |
| Grand Prix | 16 | 22 | 18 | Regular Gasoline | — | 3.8L 6-cyl | Automatic 3-spd |