- Newest year: 2010
- Gas
- Small cars
2005-2010 Pontiac G6 MPG & Fuel Cost
6 model years · 18–26 MPG combined
15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 8 of 10 small car configurations, MY2010. Ranked against all rated configurations, not sales-weighted.
2005-2010 Pontiac G6 at a glance
The 2005-2010 Pontiac G6 covers 6 model years in the EPA database (35 configurations in all), rated 18–26 MPG combined. The newest model year, 2010, costs about $2,510 a year to fuel for its most efficient version, the G6 2.4L 4-cyl FWD (26 MPG), at regular gasoline $4.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2006, 2007, 2008, 2009 and 2010. The best combined rating in the generation, 26 MPG, was reached in 2009 and 2010.
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
2005-2010 Pontiac G6 by model year
| Model year | Powertrains | Combined | $/yr | EPA ratings |
|---|---|---|---|---|
| 2010 | Gas | 18–26 MPG | $2,510–$3,630 | Ratings changed |
| 2009 | Gas | 18–26 MPG | $2,510–$3,630 | Ratings changed |
| 2008 | Gas | 18–25 MPG | $2,610–$3,630 | Ratings changed |
| 2007 | Gas | 18–24 MPG | $2,720–$3,630 | Ratings changed |
| 2006 | Gas | 19–24 MPG | $2,720–$3,440 | Ratings changed |
| 2005 | Gas | 21–23 MPG | $2,840–$3,110 | First year |
What the 2010 G6 2.4L 4-cyl FWD costs to drive
Per month
$209
$2,510 a year ÷ 12
Per 25 miles
$4.18
Per 100 miles
$16.73
Five years
$12,550
5 × the yearly cost, prices held at today's level
vs the small car median
$760less a year
Class median $3,270 a year, MY2010
Based on 15,000 miles a year and regular gasoline $4.36/gal (U.S. average, Sep 2026).
2010 Pontiac G6 MPG
Versus 2009: The most efficient configuration stays at 26 MPG. Its annual cost stays at $2,510.
Gas configurations (8)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| G6 2.4L 4-cyl FWD Automatic (S6) (Most efficient) | 2.4L 4-cyl | FWD | 22 | 33 | 26 | $2,510 |
| G6 2.4L 4-cyl FWD Automatic (S6) | 2.4L 4-cyl | FWD | 22 | 33 | 26 | $2,510 |
| G6 2.4L 4-cyl FWD Automatic 4-spd | 2.4L 4-cyl | FWD | 22 | 30 | 25 | $2,610 |
| G6 2.4L 4-cyl FWD Automatic 4-spd | 2.4L 4-cyl | FWD | 22 | 30 | 25 | $2,610 |
| G6 3.5L 6-cyl FWD Automatic 4-spd | 3.5L 6-cyl | FWD | 19 | 29 | 23 | $2,840 |
| G6 3.5L 6-cyl FWD Automatic 4-spd | 3.5L 6-cyl | FWD | 18 | 29 | 22 | $2,970 |
| G6 3.6L 6-cyl FWD Automatic (S6) | 3.6L 6-cyl | FWD | 17 | 26 | 20 | $3,270 |
| G6 3.6L 6-cyl FWD Automatic (S4) | 3.6L 6-cyl | FWD | 15 | 22 | 18 | $3,630 |
Flex-fuel (E85) configurations are costed on gasoline, not E85.
2009 Pontiac G6 MPG
18–26 MPG · $2,510–$3,630/yr
Versus 2008: The most efficient configuration moves from 25 to 26 MPG, up 1. Its annual cost goes from $2,610 to $2,510, $100 less.
Gas configurations (7)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| G6 2.4L 4-cyl FWD Automatic (S6) (Most efficient) | 2.4L 4-cyl | FWD | 22 | 33 | 26 | $2,510 |
| G6 2.4L 4-cyl FWD Automatic 4-spd | 2.4L 4-cyl | FWD | 22 | 30 | 25 | $2,610 |
| G6 3.5L 6-cyl FWD Automatic 4-spd | 3.5L 6-cyl | FWD | 19 | 29 | 23 | $2,840 |
| G6 3.5L 6-cyl FWD Automatic 4-spd | 3.5L 6-cyl | FWD | 18 | 29 | 22 | $2,970 |
| G6 3.5L 6-cyl FWD Automatic (S4) | 3.5L 6-cyl | FWD | 17 | 26 | 20 | $3,270 |
| G6 3.6L 6-cyl | 3.6L 6-cyl | FWD | 17 | 26 | 20 | $3,270 |
Show 0 more configurations
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| G6 3.9L 6-cyl | 3.9L 6-cyl | FWD | 15 | 22 | 18 | $3,630 |
Flex-fuel (E85) configurations are costed on gasoline, not E85.
2008 Pontiac G6 MPG
18–25 MPG · $2,610–$3,630/yr
Versus 2007: The most efficient configuration moves from 24 to 25 MPG, up 1. Its annual cost goes from $2,720 to $2,610, $110 less.
Gas configurations (5)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| G6 2.4L 4-cyl (Most efficient) | 2.4L 4-cyl | FWD | 22 | 30 | 25 | $2,610 |
| G6 3.5L 6-cyl FWD Automatic 4-spd | 3.5L 6-cyl | FWD | 18 | 29 | 22 | $2,970 |
| G6 3.5L 6-cyl FWD Automatic (S4) | 3.5L 6-cyl | FWD | 17 | 26 | 20 | $3,270 |
| G6 3.6L 6-cyl | 3.6L 6-cyl | FWD | 17 | 26 | 20 | $3,270 |
| G6 3.9L 6-cyl | 3.9L 6-cyl | FWD | 15 | 22 | 18 | $3,630 |
2007 Pontiac G6 MPG
18–24 MPG · $2,720–$3,630/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2006: The most efficient configuration stays at 24 MPG. Its annual cost stays at $2,720.
Gas configurations (6)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| G6 2.4L 4-cyl (Most efficient) | 2.4L 4-cyl | FWD | 20 | 30 | 24 | $2,720 |
| G6 3.5L 6-cyl FWD Automatic 4-spd | 3.5L 6-cyl | FWD | 18 | 28 | 21 | $3,110 |
| G6 3.5L 6-cyl FWD Automatic (S4) | 3.5L 6-cyl | FWD | 18 | 26 | 21 | $3,110 |
| G6 3.6L 6-cyl | 3.6L 6-cyl | FWD | 17 | 26 | 21 | $3,110 |
| G6 3.9L 6-cyl | 3.9L 6-cyl | FWD | 16 | 25 | 19 | $3,440 |
| GT/GTP Convertible | 3.9L 6-cyl | FWD | 15 | 22 | 18 | $3,630 |
2006 Pontiac G6 MPG
19–24 MPG · $2,720–$3,440/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2005: The most efficient configuration moves from 23 to 24 MPG, up 1. Its annual cost goes from $2,840 to $2,720, $120 less.
Gas configurations (7)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| G6 2.4L 4-cyl (Most efficient) | 2.4L 4-cyl | FWD | 21 | 31 | 24 | $2,720 |
| G6 3.5L 6-cyl FWD Automatic 4-spd | 3.5L 6-cyl | FWD | 20 | 29 | 23 | $2,840 |
| G6 3.5L 6-cyl FWD Automatic (S4) | 3.5L 6-cyl | FWD | 19 | 26 | 21 | $3,110 |
| GT/GTP Convertible 3.5L 6-cyl | 3.5L 6-cyl | FWD | 17 | 25 | 20 | $3,270 |
| G6 3.9L 6-cyl FWD Manual 6-spd | 3.9L 6-cyl | FWD | 16 | 26 | 19 | $3,440 |
| G6 3.9L 6-cyl FWD Automatic (S4) | 3.9L 6-cyl | FWD | 16 | 24 | 19 | $3,440 |
Show 0 more configurations
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| GT/GTP Convertible 3.9L 6-cyl | 3.9L 6-cyl | FWD | 16 | 24 | 19 | $3,440 |
2005 Pontiac G6 MPG
21–23 MPG · $2,840–$3,110/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| G6 3.5L 6-cyl FWD Automatic 4-spd (Most efficient) | 3.5L 6-cyl | FWD | 20 | 29 | 23 | $2,840 |
| G6 3.5L 6-cyl FWD Automatic (S4) | 3.5L 6-cyl | FWD | 19 | 26 | 21 | $3,110 |
Fuel cost by state
Yearly cost of the G6 2.4L 4-cyl FWD: $3,420 in California and $2,190 in Texas, a $1,230 difference.
- California $3,420
- Washington $3,170
- New York $2,510
- Florida $2,370
- Texas $2,190
Similar cars
Closest combined MPG among MY2010 small car models.
Generations
- 2005-2010 (2005)
Frequently asked questions
What gas mileage does the 2005-2010 Pontiac G6 get?
EPA rates the 2005-2010 Pontiac G6 at 18–26 MPG combined across 35 configurations and 6 model years. The most efficient version, the 2010 G6 2.4L 4-cyl FWD, is rated 26 MPG (22 city, 33 highway).
Which years had the best MPG in the 2005-2010 Pontiac G6?
The G6 2.4L 4-cyl FWD reached the generation's best combined rating, 26 MPG, in 2009 and 2010. The lowest top rating, 23 MPG, was in 2005.
Did EPA ratings change during the 2005-2010 Pontiac G6?
Yes. Ratings changed in 2006, 2007, 2008, 2009 and 2010.
How much does it cost to fuel a 2010 Pontiac G6 per year?
Driving 15,000 miles a year at regular gasoline $4.36/gal (U.S. average, Sep 2026), the G6 2.4L 4-cyl FWD costs about $2,510 a year. Across all 8 configurations the cost runs $2,510–$3,630 a year. That is a $1,120 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2010 Pontiac G6 100 miles?
About $16.73 per 100 miles for the G6 2.4L 4-cyl FWD at regular gasoline $4.36/gal (U.S. average, Sep 2026), and between $16.73 and $24.20 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2010 Pontiac G6 more efficient in the city or on the highway?
The G6 2.4L 4-cyl FWD is rated 22 city and 33 highway MPG, so it is more efficient on the highway, by 11 MPG.
How does the 2010 Pontiac G6 compare with other small car configurations?
The G6 2.4L 4-cyl FWD costs about $2,510 a year to fuel, $760 less than the class median of $3,270, and less than 8 of 10 small car configurations. The comparison covers all 338 rated small car configurations for MY2010, not weighted by sales.
Is the 2010 Pontiac G6 different from the 2009 model?
The most efficient configuration stays at 26 MPG. Its annual cost stays at $2,510. EPA lists 8 configurations for 2010 against 7 configurations for 2009. See the 2009 Pontiac G6 for that year.