1989 · Midsize Car · Gas
1989 Pontiac Grand Prix MPG & fuel economy
The 1989 Pontiac Grand Prix is a midsize car offered in 4 EPA-rated configurations. The most efficient version returns 21 MPG combined (18 city / 27 highway) on regular gasoline. Across the lineup, combined ratings range from 17 to 21 MPG. Efficiency is unchanged from the 1988 model. Among 44 midsize cars rated for 1989, it ranks 21st for lowest fuel cost. At 15,000 miles a year with $3.10/gal regular gas, it costs about $2,214 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 1989 Pontiac Grand Prix's fuel average is 8.9 km/L (11.2 L/100 km), or 21 MPG combined: 7.7 km/L in the city and 11.5 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 18 | 7.7 | 13.1 |
| Highway | 27 | 11.5 | 8.7 |
| Combined | 21 | 8.9 | 11.2 |
How it ranks among 1989 Midsize Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
Grand Prix MPG across model years
Full history →4 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| FWD · 2.8L 6-cyl · 4-speed automatic Grand Prix |
Gas | 18 MPG | 27 MPG | 21 MPG | — | $2,214 |
| FWD · 2.8L 6-cyl · 5-speed manual Grand Prix |
Gas | 16 MPG | 27 MPG | 20 MPG | — | $2,325 |
| FWD · 3.1L 6-cyl · 4-speed automatic Grand Prix |
Gas | 17 MPG | 28 MPG | 20 MPG | — | $2,325 |
| FWD · 3.1L 6-cyl turbo · 4-speed automatic Grand Prix Turbo |
Gas | 15 MPG | 23 MPG | 17 MPG | — | $3,485 |
Specs (most efficient configuration)
- Fuel
- Regular gasoline
- Engine / motor
- 2.8L 6-cyl
- Transmission
- 4-speed automatic
- Drivetrain
- FWD
- Passenger volume
- 95 cu ft
- Cargo volume
- 15 cu ft
- Tailpipe CO₂
- 423 g/mi
1989 Pontiac Grand Prix vs. rivals
Compare the 1989 Grand Prix
With any other car from any year, including other Grand Prix model years. Type a year to jump, e.g. "2015 Accord".
Frequently asked questions
What is the gas mileage of the 1989 Pontiac Grand Prix?
Up to 21 MPG combined (18 city / 27 highway); ratings range from 17 to 21 MPG depending on configuration.
What fuel does the 1989 Pontiac Grand Prix use?
Regular gasoline.
What is the fuel average in km/L for the 1989 Pontiac Grand Prix?
The 1989 Pontiac Grand Prix's fuel average is 8.9 km/L (11.2 L/100 km), or 21 MPG combined: 7.7 km/L in the city and 11.5 km/L on the highway.
How much does it cost to fuel the 1989 Pontiac Grand Prix per year?
About $2,214 at 15,000 miles a year with $3.10/gal regular gas, or $14.76 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.