Against 438 other V6 cars rated 2010–2012, the G25 beats their 20.4 mpg average by 2.6 mpg, about $212 a year.
Every Infiniti G25 engine, compared
The Infiniti G25 was rated in a single specification, so its gas mileage does not vary by version — only by model year. Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 2.5L 6-cyl | 20 / 29 | 2011–2012 | $1,670 |
What that actually costs
Against its rivals in the same model years, the Toyota Prius gets 48.8 mpg, the Hyundai Elantra 32 mpg and the Nissan Altima 26.7 mpg, next to 23 mpg for the 2012 G25. The G25 costs the most of them to run: $883 a year more than the Toyota Prius.
| Measure | Value |
|---|---|
| Cost per mile (2012) | $0.139 |
| Fuel per year | $1,670 |
| Fuel over five years | $8,350 |
| Against other V6 cars, 2010–2012 | −$212 a year |
| EPA's own estimate | $3,350 a year |
City or highway — who is this car for
The 2012 Infiniti G25 gives up 9 mpg in town: 29 on the highway against 20 in the city, $596 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2012) | 20 mpg | $1,920 a year if you only drive in town |
| Highway | 29 mpg | $1,324 a year if you mostly commute |
| Gap | +9 mpg (45%) | Wide — this car dislikes traffic |
How the G25 changed over the years
Combined figure across the 2 model years the G25 was rated in, all of them at 23 mpg.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2012 | 20 / 29 | 1 | $1,670 | |
| 2011 | 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 2 EPA ratings of the Infiniti G25 — 1 engine across 2011–2012. 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 $3,350. Full method.
Frequently asked questions
What mpg does the 2012 Infiniti G25 get?
23 mpg combined, 20 city and 29 highway, per EPA. Across every year since 2011 the G25 has averaged 23 mpg.
Is the 2012 G25 more efficient than the 2011?
About the same: 23 against 23 mpg combined.
Does the G25 get better gas mileage than the Toyota Prius?
No: 23 mpg for the 2012 G25 against 48.8 for the 2013 Toyota Prius, about $883 a year more to run.
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