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2018 Infiniti Q50
Shown: 2018 Infiniti Q50. Photo: Kevauto, CC BY-SA 4.0, via Wikimedia Commons
  • Gas
  • Midsize cars
  • MY2014–2024

Infiniti Q50 MPG & Fuel Cost by Year

11 model years · 2014–2024

23 MPG
Combined
20 MPG
City
29 MPG
Highway
Annual cost · MY2024 Q50 3.0L 6-cyl turbo RWD
$3,490

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

All Infiniti models

Infiniti Q50 fuel economy at a glance

EPA has rated the Infiniti Q50 for 11 model years, 2014 to 2024. Across those years its combined rating runs 21–31 MPG. The latest model year, 2024, has 4 configurations rated 22–23 MPG combined and costing $3,490–$3,650 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2014 is the 2015 Hybrid 3.5L 6-cyl RWD, at 31 MPG.

Infiniti Q50 MPG by year

20222426283032 20142024 Gas Hybrid 20222426283032 20142024 Gas Hybrid
Combined MPG: the line is the most efficient configuration, the shaded band reaches down to the least efficient. Dotted lines mark new generations.
Infiniti Q50: combined fuel economy and annual fuel cost for each model year, grouped by generation
Year Gas (MPG)Hybrid (MPG) $/yr
2014-2024 (2014) Generation page
2024 22–23— $3,490–$3,650
2023 22–23— $3,490–$3,650
2022 22–23— $3,490–$3,650
2021 22–23— $3,490–$3,650
2020 22–23— $3,490–$3,670
2019 22–25— $3,210–$3,680
2018 22–2528–29 $2,780–$3,680
2017 22–2628–29 $2,780–$3,710
2016 21–2628–30 $2,670–$3,810
2015 22–2328–31 $2,590–$3,710
2014 22–2328–31 $2,550–$3,720

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 Q50 generations

1 generations between 2014 and 2024. Open one for the table of every model year and configuration.

2024 powertrain options

Gas · 3.0L
Combined
22–23 MPG
Per year
$3,490–$3,650
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 Q50's gas mileage by year?

EPA combined ratings for the Infiniti Q50 run 21–31 MPG across model years 2014 to 2024. The latest year, 2024, is rated 22–23 MPG.

Which Infiniti Q50 model year has the best gas mileage?

The 2015 Infiniti Q50 Hybrid 3.5L 6-cyl RWD has the highest combined rating since 2014, at 31 MPG.

How much does a Infiniti Q50 cost to fuel per year?

For MY2024, EPA-rated configurations cost $3,490–$3,650 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $3,490.

Has the Infiniti Q50's fuel economy improved over time?

No. The most efficient configuration moved from 31 MPG in 2014 to 23 MPG in 2024, 8 MPG less.

Is there a hybrid, plug-in or electric Infiniti Q50?

Yes. Hybrid versions are rated from 2014 to 2018 (28–31 MPG).

Which Infiniti Q50 model years have the same ratings?

EPA lists identical ratings as the previous year for 2023, 2024. The generation pages mark those years "same EPA ratings" and point to the year that holds the full table.