1985 · Midsize Car · Gas
1985 Pontiac Bonneville MPG & fuel economy
The 1985 Pontiac Bonneville is a midsize car offered in 2 EPA-rated configurations. The most efficient version returns 19 MPG combined (17 city / 22 highway) on regular gasoline. Across the lineup, combined ratings range from 18 to 19 MPG. Efficiency is unchanged from the 1984 model. Among 46 midsize cars rated for 1985, it ranks 25th for lowest fuel cost. At 15,000 miles a year with $3.10/gal regular gas, it costs about $2,447 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 1985 Pontiac Bonneville's fuel average is 8.1 km/L (12.4 L/100 km), or 19 MPG combined: 7.2 km/L in the city and 9.4 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 17 | 7.2 | 13.8 |
| Highway | 22 | 9.4 | 10.7 |
| Combined | 19 | 8.1 | 12.4 |
How it ranks among 1985 Midsize Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
Bonneville MPG across model years
Full history →2 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| RWD · 3.8L 6-cyl · 3-speed automatic Bonneville |
Gas | 17 MPG | 22 MPG | 19 MPG | — | $2,447 |
| RWD · 3.8L 6-cyl · 3-speed automatic Bonneville |
Gas | 16 MPG | 22 MPG | 18 MPG | — | $2,583 |
Specs (most efficient configuration)
- Fuel
- Regular gasoline
- Engine / motor
- 3.8L 6-cyl
- Transmission
- 3-speed automatic
- Drivetrain
- RWD
- Passenger volume
- 101 cu ft
- Cargo volume
- 17 cu ft
- Tailpipe CO₂
- 468 g/mi
1985 Pontiac Bonneville vs. rivals
Compare the 1985 Bonneville
With any other car from any year, including other Bonneville model years. Type a year to jump, e.g. "2015 Accord".
Same year, other powertrains: 1985 Pontiac Bonneville Hybrid (17 MPG)
Frequently asked questions
What is the gas mileage of the 1985 Pontiac Bonneville?
Up to 19 MPG combined (17 city / 22 highway); ratings range from 18 to 19 MPG depending on configuration.
What fuel does the 1985 Pontiac Bonneville use?
Regular gasoline.
What is the fuel average in km/L for the 1985 Pontiac Bonneville?
The 1985 Pontiac Bonneville's fuel average is 8.1 km/L (12.4 L/100 km), or 19 MPG combined: 7.2 km/L in the city and 9.4 km/L on the highway.
How much does it cost to fuel the 1985 Pontiac Bonneville per year?
About $2,447 at 15,000 miles a year with $3.10/gal regular gas, or $16.32 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.