1985 · Large Car · Gas
1985 Oldsmobile Delta 88 Royale MPG & fuel economy
The 1985 Oldsmobile Delta 88 Royale is a large car offered in 3 EPA-rated configurations. The most efficient version returns 18 MPG combined (15 city / 22 highway) on regular gasoline. Across the lineup, combined ratings range from 17 to 18 MPG. Among 23 large cars rated for 1985, it ranks 11th for lowest fuel cost. At 15,000 miles a year with $3.10/gal regular gas, it costs about $2,583 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 1985 Oldsmobile Delta 88 Royale's fuel average is 7.7 km/L (13.1 L/100 km), or 18 MPG combined: 6.4 km/L in the city and 9.4 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 15 | 6.4 | 15.7 |
| Highway | 22 | 9.4 | 10.7 |
| Combined | 18 | 7.7 | 13.1 |
How it ranks among 1985 Large Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
Delta 88 Royale MPG across model years
Full history →3 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| RWD · 5.0L 8-cyl · 4-speed automatic Delta 88 Royale |
Gas | 15 MPG | 22 MPG | 18 MPG | — | $2,583 |
| RWD · 3.8L 6-cyl · 3-speed automatic Delta 88 Royale |
Gas | 15 MPG | 20 MPG | 17 MPG | — | $2,735 |
| RWD · 5.0L 8-cyl · 3-speed automatic Delta 88 Royale |
Gas | 15 MPG | 20 MPG | 17 MPG | — | $2,735 |
Specs (most efficient configuration)
- Fuel
- Regular gasoline
- Engine / motor
- 5.0L 8-cyl
- Transmission
- 4-speed automatic
- Drivetrain
- RWD
- Passenger volume
- 110 cu ft
- Cargo volume
- 21 cu ft
- Tailpipe CO₂
- 494 g/mi
1985 Oldsmobile Delta 88 Royale vs. rivals
Compare the 1985 Delta 88 Royale
With any other car from any year, including other Delta 88 Royale model years. Type a year to jump, e.g. "2015 Accord".
Same year, other powertrains: 1985 Oldsmobile Delta 88 Royale Diesel (21 MPG)
Frequently asked questions
What is the gas mileage of the 1985 Oldsmobile Delta 88 Royale?
Up to 18 MPG combined (15 city / 22 highway); ratings range from 17 to 18 MPG depending on configuration.
What fuel does the 1985 Oldsmobile Delta 88 Royale use?
Regular gasoline.
What is the fuel average in km/L for the 1985 Oldsmobile Delta 88 Royale?
The 1985 Oldsmobile Delta 88 Royale's fuel average is 7.7 km/L (13.1 L/100 km), or 18 MPG combined: 6.4 km/L in the city and 9.4 km/L on the highway.
How much does it cost to fuel the 1985 Oldsmobile Delta 88 Royale per year?
About $2,583 at 15,000 miles a year with $3.10/gal regular gas, or $17.22 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.