- Newest year: 2008
- Gas
- Small cars
2008 Infiniti G37 MPG & Fuel Cost
2 configurations · 20 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 3 of 10 small car configurations, MY2008. Ranked against all rated configurations, not sales-weighted.
2008 Infiniti G37 at a glance
The 2008 Infiniti G37 has 2 configurations in the EPA database, rated 20 MPG combined. The most efficient is the Coupe 3.7L 6-cyl RWD at 20 MPG, which costs about $4,020 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The Coupe 3.7L 6-cyl RWD costs less to fuel than 3 of 10 small car configurations rated for MY2008 (class median $3,830 a year).
What the 2008 Coupe 3.7L 6-cyl RWD costs to drive
Per month
$335
$4,020 a year ÷ 12
Per 25 miles
$6.70
Per 100 miles
$26.80
Five years
$20,100
5 × the yearly cost, prices held at today's level
vs the small car median
$190more a year
Class median $3,830 a year, MY2008
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2008 Infiniti G37 MPG
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Coupe 3.7L 6-cyl RWD Manual 6-spd (Most efficient) | 3.7L 6-cyl | RWD | 17 | 26 | 20 | $4,020 |
| Coupe 3.7L 6-cyl RWD Automatic (S5) | 3.7L 6-cyl | RWD | 18 | 24 | 20 | $4,020 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Fuel cost by state
Yearly cost of the Coupe 3.7L 6-cyl RWD: $4,790 in California and $3,480 in Texas, a $1,310 difference.
- California $4,790
- Washington $4,510
- New York $3,970
- Florida $3,670
- Texas $3,480
Similar cars
Closest combined MPG among MY2008 small car models.
Generations
- 2008
- 2009-2013
Frequently asked questions
What gas mileage does the 2008 Infiniti G37 get?
EPA rates the 2008 Infiniti G37 at 20 MPG combined across 2 configurations. The most efficient, the Coupe 3.7L 6-cyl RWD, is rated 20 MPG combined (17 city / 26 highway).
How much does it cost to fuel a 2008 Infiniti G37 per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the Coupe 3.7L 6-cyl RWD costs about $4,020 a year. Across all 2 configurations the cost runs $4,020 a year.
How much does it cost to drive a 2008 Infiniti G37 100 miles?
About $26.80 per 100 miles for the Coupe 3.7L 6-cyl RWD at premium gasoline $5.36/gal (U.S. average, Sep 2026). That is the annual cost over 15,000 miles divided by 150.
Is the 2008 Infiniti G37 more efficient in the city or on the highway?
The Coupe 3.7L 6-cyl RWD is rated 17 city and 26 highway MPG, so it is more efficient on the highway, by 9 MPG.
How does the 2008 Infiniti G37 compare with other small car configurations?
The Coupe 3.7L 6-cyl RWD costs about $4,020 a year to fuel, $190 more than the class median of $3,830, and less than 3 of 10 small car configurations. The comparison covers all 307 rated small car configurations for MY2008, not weighted by sales.