Against 282 other 4-cyl cars rated 2008–2010, the G5 beats their 25.1 mpg average by 4.9 mpg, about $250 a year. Averaged over the years each was sold, the most economical engine since 2007, the 2.2L 4-cyl (2008–2010), does 29.7 mpg and the thirstiest, the 2.4L 4-cyl (2007), 25: $243 a year apart.
Every Pontiac G5 engine, compared
Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 2.2L 4-cyl | 25 / 36.3 | 2008–2010 | $1,293 | |
| 2.4L 4-cyl | 22 / 31 | 2007–2007 | $1,536 |
What that actually costs
Against its rivals in the same model years, the Chevrolet Cobalt gets 30 mpg and the Volkswagen Rabbit 24 mpg, next to 30 mpg for the 2010 G5.
| Measure | Value |
|---|---|
| Cost per mile (2010) | $0.107 |
| Fuel per year | $1,280 |
| Fuel over five years | $6,400 |
| Against other 4-cyl cars, 2008–2010 | −$250 a year |
| EPA's own estimate | $2,363 a year |
City or highway — who is this car for
The 2010 Pontiac G5 gives up 12 mpg in town: 37 on the highway against 25 in the city, $498 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2010) | 25 mpg | $1,536 a year if you only drive in town |
| Highway | 37 mpg | $1,038 a year if you mostly commute |
| Gap | +12 mpg (48%) | Wide — this car dislikes traffic |
How the G5 changed over the years
The G5 peaked in 2010 at 30 mpg (25 city, 37 highway) and was at its thirstiest in 2007 at 25 — 5 mpg apart, or $256 a year in fuel between buying one year and the other. The biggest single-year change came in 2008: 25 to 29 mpg.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2010 | 25 / 37 | 1 | $1,280 | |
| 2009 | 25 / 37 | 1 | $1,280 | |
| 2008 | 25 / 35 | 1 | $1,324 | |
| 2007 | 22 / 31 | 1 | $1,536 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 4 EPA ratings of the Pontiac G5 — 2 engines across 2007–2010. 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 $2,363. Full method.
Frequently asked questions
What mpg does the 2010 Pontiac G5 get?
30 mpg combined, 25 city and 37 highway, per EPA. Across every year since 2007 the G5 has averaged 28.5 mpg.
Is the 2010 G5 more efficient than the 2009?
About the same: 30 against 30 mpg combined.
Which G5 year has the best gas mileage?
The 2010, at 30 mpg combined (25 city, 37 highway), which is also the latest model year we hold.
Does the G5 get better gas mileage than the Chevrolet Cobalt?
About the same: 30 mpg for the 2010 G5 against 30 for the 2010 Chevrolet Cobalt.
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