2008 Pontiac G8
2 configurations — EPA fuel economy ratings
| Trim / Variant | City MPG | Hwy MPG | Combined MPG | Fuel | Drive | Engine | Transmission |
|---|---|---|---|---|---|---|---|
| G8 | 17 | 25 | 20 | Regular Gasoline | Rear-Wheel Drive | 3.6L 6-cyl | Automatic (S5) |
| G8 | 15 | 24 | 18 | Premium Gasoline | Rear-Wheel Drive | 6L 8-cyl | Automatic (S6) |