1998 · Large Car · Gas
1998 Cadillac DeVille MPG & fuel economy
The 1998 Cadillac DeVille is a large car with one EPA-rated configuration. The most efficient version returns 18 MPG combined (15 city / 24 highway) on regular gasoline. Efficiency is unchanged from the 1997 model. Among 19 large cars rated for 1998, it ranks 13th 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 1998 Cadillac DeVille'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 10.2 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 15 | 6.4 | 15.7 |
| Highway | 24 | 10.2 | 9.8 |
| Combined | 18 | 7.7 | 13.1 |
How it ranks among 1998 Large Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
DeVille MPG across model years
Full history →1 EPA-rated configuration
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| FWD · 4.6L 8-cyl · 4-speed automatic DeVille |
Gas | 15 MPG | 24 MPG | 18 MPG | — | $2,583 |
Specs (most efficient configuration)
- Fuel
- Regular gasoline
- Engine / motor
- 4.6L 8-cyl
- Transmission
- 4-speed automatic
- Drivetrain
- FWD
- Passenger volume
- 116 cu ft
- Cargo volume
- 20 cu ft
- Tailpipe CO₂
- 494 g/mi
1998 Cadillac DeVille vs. rivals
Compare the 1998 DeVille
With any other car from any year, including other DeVille model years. Type a year to jump, e.g. "2015 Accord".
Frequently asked questions
What is the gas mileage of the 1998 Cadillac DeVille?
Up to 18 MPG combined (15 city / 24 highway).
What fuel does the 1998 Cadillac DeVille use?
Regular gasoline.
What is the fuel average in km/L for the 1998 Cadillac DeVille?
The 1998 Cadillac DeVille'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 10.2 km/L on the highway.
How much does it cost to fuel the 1998 Cadillac DeVille 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.