Buick
Riviera Convertible
U.S. fuel economy and specifications from the EPA.
17Best combined MPG1985 model year
1984–1985Model years2 with EPA ratings
8Rated configurationsDrive, transmission and engine
3.8–5 LEngine sizeDisplacement
Best combined MPG by model year
The highest EPA rating among each year's configurations.
1984 16 MPG
1985 17 MPG
3 configurations.
Front-Wheel Drive · Automatic 4-spd
Regular gasoline · Compact Cars
- Combined MPG
- 17
- Engine displacement
- 5.0 L
- Cylinders
- 8
Front-Wheel Drive · Automatic 4-spd
Premium gasoline · Compact Cars
- Combined MPG
- 17
- Engine displacement
- 3.8 L
- Cylinders
- 6
Front-Wheel Drive · Automatic 4-spd
Regular gasoline · Compact Cars
- Combined MPG
- 17
- Engine displacement
- 5.0 L
- Cylinders
- 8
Drive not reported · Automatic 4-spd
Regular gasoline · Compact Cars
- Combined MPG
- 15
- Engine displacement
- 3.8 L
- Cylinders
- 6
Drive not reported · Automatic 4-spd
Regular gasoline · Compact Cars
- Combined MPG
- 15
- Engine displacement
- 4.1 L
- Cylinders
- 6
Drive not reported · Automatic 4-spd
Regular gasoline · Compact Cars
- Combined MPG
- 16
- Engine displacement
- 5.0 L
- Cylinders
- 8
Drive not reported · Automatic 4-spd
Regular gasoline · Compact Cars
- Combined MPG
- 15
- Engine displacement
- 4.1 L
- Cylinders
- 6
Drive not reported · Automatic 4-spd
Regular gasoline · Compact Cars
- Combined MPG
- 16
- Engine displacement
- 5.0 L
- Cylinders
- 8