1985 · Large Car · Diesel
1985 Cadillac Fleetwood/DeVille Diesel MPG & fuel economy
The 1985 Cadillac Fleetwood/DeVille Diesel is a large car with one EPA-rated configuration. The most efficient version returns 23 MPG combined (19 city / 29 highway) on diesel. That's down 1 MPG from the 1984 model. Among 23 large cars rated for 1985, it ranks 2nd 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?
Your mileage and prices are saved and used across the site.
Fuel average
The 1985 Cadillac Fleetwood/DeVille Diesel's fuel average is 9.8 km/L (10.2 L/100 km), or 23 MPG combined: 8.1 km/L in the city and 12.3 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 19 | 8.1 | 12.4 |
| Highway | 29 | 12.3 | 8.1 |
| Combined | 23 | 9.8 | 10.2 |
How it ranks among 1985 Large Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
Fleetwood/DeVille Diesel MPG across model years
Full history →1 EPA-rated configuration
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| FWD · 4.3L 6-cyl · 4-speed automatic Fleetwood/DeVille (FWD) |
Diesel | 19 MPG | 29 MPG | 23 MPG | — | $2,413 |
Specs (most efficient configuration)
- Fuel
- Diesel
- Engine / motor
- 4.3L 6-cyl
- Transmission
- 4-speed automatic
- Drivetrain
- FWD
- Passenger volume
- 110 cu ft
- Cargo volume
- 16 cu ft
- Tailpipe CO₂
- 443 g/mi
1985 Cadillac Fleetwood/DeVille Diesel vs. rivals
Compare the 1985 Fleetwood/DeVille Diesel
With any other car from any year, including other Fleetwood/DeVille Diesel model years. Type a year to jump, e.g. "2015 Accord".
Same year, other powertrains: 1985 Cadillac Fleetwood/DeVille (18 MPG)
Frequently asked questions
What is the gas mileage of the 1985 Cadillac Fleetwood/DeVille Diesel?
Up to 23 MPG combined (19 city / 29 highway).
What fuel does the 1985 Cadillac Fleetwood/DeVille Diesel use?
Diesel.
What is the fuel average in km/L for the 1985 Cadillac Fleetwood/DeVille Diesel?
The 1985 Cadillac Fleetwood/DeVille Diesel's fuel average is 9.8 km/L (10.2 L/100 km), or 23 MPG combined: 8.1 km/L in the city and 12.3 km/L on the highway.
How much does it cost to fuel the 1985 Cadillac Fleetwood/DeVille 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.