1989 Pontiac Grand Prix
4 configurations — EPA fuel economy ratings
| Trim / Variant | City MPG | Hwy MPG | Combined MPG | Fuel | Drive | Engine | Transmission |
|---|---|---|---|---|---|---|---|
| Grand Prix | 16 | 27 | 20 | Regular Gasoline | Front-Wheel Drive | 2.8L 6-cyl | Manual 5-spd |
| Grand Prix | 18 | 27 | 21 | Regular Gasoline | Front-Wheel Drive | 2.8L 6-cyl | Automatic 4-spd |
| Grand Prix | 17 | 28 | 20 | Regular Gasoline | Front-Wheel Drive | 3.1L 6-cyl | Automatic 4-spd |
| Grand Prix Turbo | 15 | 23 | 17 | Premium Gasoline | Front-Wheel Drive | 3.1L 6-cyl Turbo | Automatic 4-spd |