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Infiniti FX50 S (S51
Shown: Infiniti FX50 S (S51. Photo: M 93, CC BY-SA 3.0 DE, via Wikimedia Commons
  • Gas
  • Small SUVs
  • MY2009–2013

Infiniti FX50 MPG & Fuel Cost by Year

5 model years · 2009–2013

16 MPG
Combined
14 MPG
City
20 MPG
Highway
Annual cost · MY2013 FX50 5.0L 8-cyl AWD
$4,930

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

All Infiniti models

Infiniti FX50 fuel economy at a glance

EPA has rated the Infiniti FX50 for 5 model years, 2009 to 2013. Across those years its combined rating runs 16 MPG. The latest model year, 2013, has 1 configuration rated 16 MPG combined and costing $4,930 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2009 is the 2013 FX50 5.0L 8-cyl AWD, at 16 MPG.

Infiniti FX50 MPG by year

1618 200920102013 Gas 1618 200920102013 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 FX50: combined fuel economy and annual fuel cost for each model year, grouped by generation
Year Gas (MPG) $/yr
2010-2013 Generation page
2013 16 $4,930
2012 16 $4,900
2011 16 $4,870
2010 16 $5,020
2009 Generation page
2009 16 $5,020

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 FX50 generations

2 generations between 2009 and 2013. Open one for the table of every model year and configuration.

2013 powertrain options

Gas · 5.0L
Combined
16 MPG
Per year
$4,930
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 FX50's gas mileage by year?

EPA combined ratings for the Infiniti FX50 run 16 MPG across model years 2009 to 2013. The latest year, 2013, is rated 16 MPG.

Which Infiniti FX50 model year has the best gas mileage?

The 2013 Infiniti FX50 FX50 5.0L 8-cyl AWD has the highest combined rating since 2009, at 16 MPG.

How much does a Infiniti FX50 cost to fuel per year?

For MY2013, EPA-rated configurations cost $4,930 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $4,930.

Has the Infiniti FX50's fuel economy improved over time?

Not much. The most efficient configuration is rated 16 MPG in both 2009 and 2013.

How many generations of the Infiniti FX50 are there?

EPA data covers 2 generations of the Infiniti FX50: 2010-2013, 2009. Each has its own page with a table for every model year.