1998 Buick Riviera
1 configuration — EPA fuel economy ratings
| Trim / Variant | City MPG | Hwy MPG | Combined MPG | Fuel | Drive | Engine | Transmission |
|---|---|---|---|---|---|---|---|
| Riviera | 16 | 25 | 19 | Regular Gasoline | Front-Wheel Drive | 3.8L 6-cyl Turbo Supercharged | Automatic 4-spd |
1 configuration — EPA fuel economy ratings
| Trim / Variant | City MPG | Hwy MPG | Combined MPG | Fuel | Drive | Engine | Transmission |
|---|---|---|---|---|---|---|---|
| Riviera | 16 | 25 | 19 | Regular Gasoline | Front-Wheel Drive | 3.8L 6-cyl Turbo Supercharged | Automatic 4-spd |