Cadillac
Fleetwood/DeVille
U.S. fuel economy and specifications from the EPA.

18Best combined MPG1986 model year
1986–1992Model years6 with EPA ratings
6Rated configurationsDrive, transmission and engine
4.1–4.9 LEngine sizeDisplacement
Best combined MPG by model year
The highest EPA rating among each year's configurations.
1986 18 MPG
1987 18 MPG
1988 No rating
1989 18 MPG
1990 17 MPG
1991 18 MPG
1992 18 MPG
1 configuration.
Front-Wheel Drive · Automatic 4-spd
Premium gasoline · Large Cars
- Combined MPG
- 18
- Engine displacement
- 4.9 L
- Cylinders
- 8
Front-Wheel Drive · Automatic 4-spd
Premium gasoline · Large Cars
- Combined MPG
- 18
- Engine displacement
- 4.9 L
- Cylinders
- 8
Front-Wheel Drive · Automatic 4-spd
Premium gasoline · Large Cars
- Combined MPG
- 17
- Engine displacement
- 4.5 L
- Cylinders
- 8
Front-Wheel Drive · Automatic 4-spd
Regular gasoline · Large Cars
- Combined MPG
- 18
- Engine displacement
- 4.5 L
- Cylinders
- 8
Front-Wheel Drive · Automatic 4-spd
Regular gasoline · Large Cars
- Combined MPG
- 18
- Engine displacement
- 4.1 L
- Cylinders
- 8
Front-Wheel Drive · Automatic 4-spd
Regular gasoline · Large Cars
- Combined MPG
- 18
- Engine displacement
- 4.1 L
- Cylinders
- 8