Oldsmobile
Delta 88 Royale
U.S. fuel economy and specifications from the EPA.
21Best combined MPG1985 model year
1985–1987Model years3 with EPA ratings
10Rated configurationsDrive, transmission and engine
3–5.7 LEngine sizeDisplacement
Best combined MPG by model year
The highest EPA rating among each year's configurations.
1985 21 MPG
1986 20 MPG
1987 19 MPG
1 configuration.
Front-Wheel Drive · Automatic 4-spd
Regular gasoline · Large Cars
- Combined MPG
- 19
- Engine displacement
- 3.8 L
- Cylinders
- 6
Front-Wheel Drive · Automatic 4-spd
Regular gasoline · Large Cars
- Combined MPG
- 19
- Engine displacement
- 3.0 L
- Cylinders
- 6
Front-Wheel Drive · Automatic 4-spd
Regular gasoline · Large Cars
- Combined MPG
- 20
- Engine displacement
- 3.8 L
- Cylinders
- 6
Rear-Wheel Drive · Automatic 3-spd
Regular gasoline · Large Cars
- Combined MPG
- 17
- Engine displacement
- 3.8 L
- Cylinders
- 6
Rear-Wheel Drive · Automatic 4-spd
Regular gasoline · Large Cars
- Combined MPG
- 18
- Engine displacement
- 5.0 L
- Cylinders
- 8
Rear-Wheel Drive · Automatic 3-spd
Regular gasoline · Large Cars
- Combined MPG
- 17
- Engine displacement
- 3.8 L
- Cylinders
- 6
Rear-Wheel Drive · Automatic 3-spd
Regular gasoline · Large Cars
- Combined MPG
- 17
- Engine displacement
- 5.0 L
- Cylinders
- 8
Rear-Wheel Drive · Automatic 4-spd
Regular gasoline · Large Cars
- Combined MPG
- 18
- Engine displacement
- 5.0 L
- Cylinders
- 8
Rear-Wheel Drive · Automatic 3-spd
Diesel · Large Cars
- Combined MPG
- 21
- Engine displacement
- 5.7 L
- Cylinders
- 8
Rear-Wheel Drive · Automatic 4-spd
Diesel · Large Cars
- Combined MPG
- 21
- Engine displacement
- 5.7 L
- Cylinders
- 8