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2012 Infiniti FX35
Shown: 2012 Infiniti FX35. Photo: TTTNIS, CC0, via Wikimedia Commons
  • Gas
  • Standard SUVs
  • MY2003–2012

Infiniti FX35 MPG & Fuel Cost by Year

10 model years · 2003–2012

19 MPG
Combined
16 MPG
City
23 MPG
Highway
Annual cost · MY2012 FX35 3.5L 6-cyl RWD
$4,330

15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)

All Infiniti models

Infiniti FX35 fuel economy at a glance

EPA has rated the Infiniti FX35 for 10 model years, 2003 to 2012. Across those years its combined rating runs 17–19 MPG. The latest model year, 2012, has 2 configurations rated 18–19 MPG combined and costing $4,330–$4,490 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 2012 FX35 3.5L 6-cyl RWD, at 19 MPG.

Infiniti FX35 MPG by year

161820 2003200920102012 Gas 161820 200320092012 Gas
Combined MPG: the line is the most efficient configuration, the shaded band reaches down to the least efficient. Dotted lines mark new generations.
Infiniti FX35: combined fuel economy and annual fuel cost for each model year, grouped by generation
Year Gas (MPG) $/yr
2010-2012 Generation page
2012 18–19 $4,330–$4,490
2011 18–19 $4,320–$4,480
2010 18–19 $4,230–$4,460
2009 Generation page
2009 18–19 $4,230–$4,460
2003-2008 (S50) Generation page
2008 17–18 $4,460–$4,730
2007 17–18 $4,460–$4,730
2006 17–18 $3,630–$3,840
2005 17–18 $3,630–$3,840
2004 17 $3,840
2003 17 $3,840

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 FX35 generations

3 generations between 2003 and 2012. Open one for the table of every model year and configuration.

2012 powertrain options

Gas · 3.5L
Combined
18–19 MPG
Per year
$4,330–$4,490
See gas configurations
EPA ratings: fueleconomy.gov file of Sep 29, 2026 · premium gasoline $5.36/gal (U.S. average, Sep 2026) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Frequently asked questions

What is the Infiniti FX35's gas mileage by year?

EPA combined ratings for the Infiniti FX35 run 17–19 MPG across model years 2003 to 2012. The latest year, 2012, is rated 18–19 MPG.

Which Infiniti FX35 model year has the best gas mileage?

The 2012 Infiniti FX35 FX35 3.5L 6-cyl RWD has the highest combined rating since 2003, at 19 MPG.

How much does a Infiniti FX35 cost to fuel per year?

For MY2012, EPA-rated configurations cost $4,330–$4,490 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $4,330.

Has the Infiniti FX35's fuel economy improved over time?

Yes. The most efficient configuration moved from 17 MPG in 2003 to 19 MPG in 2012, 2 MPG more.

Which Infiniti FX35 model years have the same ratings?

EPA lists identical ratings as the previous year for 2004, 2006, 2008. The generation pages mark those years "same EPA ratings" and point to the year that holds the full table.

How many generations of the Infiniti FX35 are there?

EPA data covers 3 generations of the Infiniti FX35: 2010-2012, 2009, 2003-2008. Each has its own page with a table for every model year.