Against 469 other V6 cars rated 2008–2010, the G6 beats their 19.7 mpg average by 4.8 mpg, about $382 a year. Averaged over the years each was sold, the most economical engine since 2005, the 2.4L 4-cyl (2006–2010), does 25 mpg and the thirstiest, the 3.5L 6-cyl (2005–2010), 22.5: $171 a year apart.
Every Pontiac G6 engine, compared
Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 2.4L 4-cyl | 21.4 / 31.4 | 2006–2010 | $1,536 | |
| 3.5L 6-cyl | 19 / 28.5 | 2005–2010 | $1,707 |
What that actually costs
Against its rivals in the same model years, the Ford Focus gets 28.3 mpg, the Nissan Versa 30 mpg and the Volkswagen Jetta 28.7 mpg, next to 24.5 mpg for the 2010 G6. The G6 costs the most of them to run: $287 a year more than the Nissan Versa.
| Measure | Value |
|---|---|
| Cost per mile (2010) | $0.131 |
| Fuel per year | $1,567 |
| Fuel over five years | $7,835 |
| Against other V6 cars, 2008–2010 | −$382 a year |
| EPA's own estimate | $2,645 a year |
City or highway — who is this car for
The 2010 Pontiac G6 gives up 10.5 mpg in town: 31 on the highway against 20.5 in the city, $634 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2010) | 20.5 mpg | $1,873 a year if you only drive in town |
| Highway | 31 mpg | $1,239 a year if you mostly commute |
| Gap | +10.5 mpg (51%) | Wide — this car dislikes traffic |
How the G6 changed over the years
The G6 peaked in 2010 at 24.5 mpg (20.5 city, 31 highway) and was at its thirstiest in 2007 at 22.5 — 2 mpg apart, or $140 a year in fuel between buying one year and the other.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2010 | 20.5 / 31 | 2 | $1,567 | |
| 2009 | 20.5 / 31 | 2 | $1,567 | |
| 2008 | 20 / 29.5 | 2 | $1,634 | |
| 2007 | 19 / 28 | 2 | $1,707 | |
| 2006 | 20.5 / 30 | 2 | $1,634 | |
| 2005 | 20 / 29 | 1 | $1,670 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 11 EPA ratings of the Pontiac G6 — 2 engines across 2005–2010. The mileage is EPA's laboratory figure, unchanged; the yearly bill is ours, at 12,000 miles and $3.20 a gallon, against EPA's own estimate of $2,645. Full method.
Frequently asked questions
What mpg does the 2010 Pontiac G6 get?
24.5 mpg combined, 20.5 city and 31 highway, per EPA; its 2 versions that year range from 23 to 26. Across every year since 2005 the G6 has averaged 23.6 mpg.
Is the 2010 G6 more efficient than the 2009?
About the same: 24.5 against 24.5 mpg combined.
Which G6 year has the best gas mileage?
The 2010, at 24.5 mpg combined (20.5 city, 31 highway), which is also the latest model year we hold.
Does the G6 get better gas mileage than the Ford Focus?
No: 24.5 mpg for the 2010 G6 against 28.3 for the 2011 Ford Focus, about $210 a year more to run.
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