2009 · Large Car · Gas
2009 Pontiac G8 MPG & fuel economy
The 2009 Pontiac G8 is a large car offered in 4 EPA-rated configurations. The most efficient version returns 20 MPG combined (17 city / 25 highway) on regular gasoline. Across the lineup, combined ratings range from 15 to 20 MPG. Efficiency is unchanged from the 2008 model. Among 32 large cars rated for 2009, it ranks 10th for lowest fuel cost. At 15,000 miles a year with $3.10/gal regular gas, it costs about $2,325 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 2009 Pontiac G8's fuel average is 8.5 km/L (11.8 L/100 km), or 20 MPG combined: 7.2 km/L in the city and 10.6 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 17 | 7.2 | 13.8 |
| Highway | 25 | 10.6 | 9.4 |
| Combined | 20 | 8.5 | 11.8 |
How it ranks among 2009 Large Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
G8 MPG across model years
Full history →4 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| RWD · 3.6L 6-cyl · 5-speed automatic G8 |
Gas | 17 MPG | 25 MPG | 20 MPG | — | $2,325 |
| RWD · 6.0L 8-cyl · 6-speed automatic G8 |
Gas | 15 MPG | 24 MPG | 18 MPG | — | $2,583 |
| RWD · 6.2L 8-cyl · 6-speed automatic G8 |
Gas | 13 MPG | 20 MPG | 15 MPG | — | $3,100 |
| RWD · 6.2L 8-cyl · 6-speed manual G8 |
Gas | 13 MPG | 20 MPG | 15 MPG | — | $3,100 |
Specs (most efficient configuration)
- Fuel
- Regular gasoline
- Engine / motor
- 3.6L 6-cyl
- Transmission
- 5-speed automatic
- Drivetrain
- RWD
- Passenger volume
- 107 cu ft
- Cargo volume
- 17 cu ft
- Tailpipe CO₂
- 444 g/mi
2009 Pontiac G8 vs. rivals
Compare the 2009 G8
With any other car from any year, including other G8 model years. Type a year to jump, e.g. "2015 Accord".
Frequently asked questions
What is the gas mileage of the 2009 Pontiac G8?
Up to 20 MPG combined (17 city / 25 highway); ratings range from 15 to 20 MPG depending on configuration.
What fuel does the 2009 Pontiac G8 use?
Regular gasoline.
What is the fuel average in km/L for the 2009 Pontiac G8?
The 2009 Pontiac G8's fuel average is 8.5 km/L (11.8 L/100 km), or 20 MPG combined: 7.2 km/L in the city and 10.6 km/L on the highway.
How much does it cost to fuel the 2009 Pontiac G8 per year?
About $2,325 at 15,000 miles a year with $3.10/gal regular gas, or $15.50 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.