- Gas
- Midsize cars
- MY2003–2008
Infiniti G35 MPG & Fuel Cost by Year
6 model years · 2003–2008
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Infiniti G35 fuel economy at a glance
EPA has rated the Infiniti G35 for 6 model years, 2003 to 2008. Across those years its combined rating runs 18–20 MPG. The latest model year, 2008, has 3 configurations rated 19–20 MPG combined and costing $4,020–$4,230 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2003 is the 2008 G35 3.5L 6-cyl RWD, at 20 MPG.
Infiniti G35 MPG by year
| Year | Gas (MPG) | $/yr |
|---|---|---|
| 2007-2008 (V36) Generation page | ||
| 2008 | 19–20 | $4,020–$4,230 |
| 2007 | 19–20 | $4,020–$4,230 |
| 2003-2006 (V35) Generation page | ||
| 2006 | 18–20 | $3,440–$4,230 |
| 2005 | 18–20 | $3,440–$4,230 |
| 2004 | 18–20 | $3,270–$4,230 |
| 2003 | 19–20 | $3,440–$4,230 |
Costs use the current EIA price set and 15,000 miles a year for every year, so years are comparable. Green marks the best year for each powertrain.
Infiniti G35 generations
2 generations between 2003 and 2008. Open one for the table of every model year and configuration.
2008 powertrain options
More Infiniti models
Frequently asked questions
What is the Infiniti G35's gas mileage by year?
EPA combined ratings for the Infiniti G35 run 18–20 MPG across model years 2003 to 2008. The latest year, 2008, is rated 19–20 MPG.
Which Infiniti G35 model year has the best gas mileage?
The 2008 Infiniti G35 G35 3.5L 6-cyl RWD has the highest combined rating since 2003, at 20 MPG.
How much does a Infiniti G35 cost to fuel per year?
For MY2008, EPA-rated configurations cost $4,020–$4,230 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $4,020.
Has the Infiniti G35's fuel economy improved over time?
Not much. The most efficient configuration is rated 20 MPG in both 2003 and 2008.