2003 · Midsize Car · Gas
2003 Pontiac Grand Prix MPG & fuel economy
The 2003 Pontiac Grand Prix is a midsize car offered in 3 EPA-rated configurations. The most efficient version returns 21 MPG combined (18 city / 26 highway) on regular gasoline. Across the lineup, combined ratings range from 19 to 21 MPG. Efficiency is unchanged from the 2002 model. Among 38 midsize cars rated for 2003, it ranks 12th 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 2003 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 11.1 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 18 | 7.7 | 13.1 |
| Highway | 26 | 11.1 | 9.0 |
| Combined | 21 | 8.9 | 11.2 |
How it ranks among 2003 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 →3 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| FWD · 3.1L 6-cyl · 4-speed automatic Grand Prix |
Gas | 18 MPG | 26 MPG | 21 MPG | — | $2,214 |
| FWD · 3.8L 6-cyl · 4-speed automatic Grand Prix |
Gas | 17 MPG | 27 MPG | 20 MPG | — | $2,325 |
| FWD · 3.8L 6-cyl supercharged · 4-speed automatic Grand Prix |
Gas | 16 MPG | 25 MPG | 19 MPG | — | $3,118 |
Specs (most efficient configuration)
- Fuel
- Regular gasoline
- Engine / motor
- 3.1L 6-cyl
- Transmission
- 4-speed automatic
- Drivetrain
- FWD
- Passenger volume
- 98 cu ft
- Cargo volume
- 16 cu ft
- Tailpipe CO₂
- 423 g/mi
2003 Pontiac Grand Prix vs. rivals
Compare the 2003 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 2003 Pontiac Grand Prix?
Up to 21 MPG combined (18 city / 26 highway); ratings range from 19 to 21 MPG depending on configuration.
What fuel does the 2003 Pontiac Grand Prix use?
Regular gasoline.
What is the fuel average in km/L for the 2003 Pontiac Grand Prix?
The 2003 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 11.1 km/L on the highway.
How much does it cost to fuel the 2003 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.