- Gas
- Midsize cars
- MY2015–2015
Infiniti Q40 MPG & Fuel Cost by Year
1 model years · 2015–2015
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Infiniti Q40 fuel economy at a glance
EPA has rated the Infiniti Q40 for 1 model years, 2015 to 2015. Across those years its combined rating runs 20–22 MPG. The latest model year, 2015, has 2 configurations rated 20–22 MPG combined and costing $3,720–$3,940 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2015 is the 2015 Q40 3.7L 6-cyl RWD, at 22 MPG.
Infiniti Q40 MPG by year
| Year | Gas (MPG) | $/yr |
|---|---|---|
| 2015 Generation page | ||
| 2015 | 20–22 | $3,720–$3,940 |
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 Q40 generations
1 generations between 2015 and 2015. Open one for the table of every model year and configuration.
2015 powertrain options
More Infiniti models
Frequently asked questions
What is the Infiniti Q40's gas mileage by year?
EPA combined ratings for the Infiniti Q40 run 20–22 MPG across model years 2015 to 2015. The latest year, 2015, is rated 20–22 MPG.
Which Infiniti Q40 model year has the best gas mileage?
The 2015 Infiniti Q40 Q40 3.7L 6-cyl RWD has the highest combined rating since 2015, at 22 MPG.
How much does a Infiniti Q40 cost to fuel per year?
For MY2015, EPA-rated configurations cost $3,720–$3,940 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $3,720.