1985 · Midsize Car · Diesel
1985 Buick Regal Diesel MPG & fuel economy
The 1985 Buick Regal Diesel is a midsize car offered in 2 EPA-rated configurations. The most efficient version returns 23 MPG combined (20 city / 29 highway) on diesel. Across the lineup, combined ratings range from 21 to 23 MPG. Efficiency is unchanged from the 1984 model. Among 46 midsize cars rated for 1985, it ranks 19th for lowest fuel cost. At 15,000 miles a year with $3.70/gal diesel fuel, it costs about $2,413 a year to fuel.
What will it cost you?
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Fuel average
The 1985 Buick Regal Diesel's fuel average is 9.8 km/L (10.2 L/100 km), or 23 MPG combined: 8.5 km/L in the city and 12.3 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 20 | 8.5 | 11.8 |
| Highway | 29 | 12.3 | 8.1 |
| Combined | 23 | 9.8 | 10.2 |
How it ranks among 1985 Midsize Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
Regal Diesel MPG across model years
Full history →2 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| RWD · 4.3L 6-cyl · 3-speed automatic Regal |
Diesel | 20 MPG | 29 MPG | 23 MPG | — | $2,413 |
| RWD · 5.7L 8-cyl · 3-speed automatic Regal |
Diesel | 18 MPG | 26 MPG | 21 MPG | — | $2,643 |
Specs (most efficient configuration)
- Fuel
- Diesel
- Engine / motor
- 4.3L 6-cyl
- Transmission
- 3-speed automatic
- Drivetrain
- RWD
- Passenger volume
- 98 cu ft
- Cargo volume
- 16 cu ft
- Tailpipe CO₂
- 443 g/mi
1985 Buick Regal Diesel vs. rivals
Compare the 1985 Regal Diesel
With any other car from any year, including other Regal Diesel model years. Type a year to jump, e.g. "2015 Accord".
Same year, other powertrains: 1985 Buick Regal (19 MPG)
Frequently asked questions
What is the gas mileage of the 1985 Buick Regal Diesel?
Up to 23 MPG combined (20 city / 29 highway); ratings range from 21 to 23 MPG depending on configuration.
What fuel does the 1985 Buick Regal Diesel use?
Diesel.
What is the fuel average in km/L for the 1985 Buick Regal Diesel?
The 1985 Buick Regal Diesel's fuel average is 9.8 km/L (10.2 L/100 km), or 23 MPG combined: 8.5 km/L in the city and 12.3 km/L on the highway.
How much does it cost to fuel the 1985 Buick Regal Diesel per year?
About $2,413 at 15,000 miles a year with $3.70/gal diesel fuel, or $16.09 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.