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Infiniti Q40 MPG

EPA fuel economy for 2 Infiniti Q40 trims sold from 2015. Best ever: 22 MPG (2015 Q40). Latest model year 2015: 20 to 22 MPG combined across 2 trims.

22best combined MPG (2015)
19 / 27city / highway of the best trim
20lowest combined MPG (2015)
1model years rated
$3,520a year to fuel, cheapest 2015 trim at EPA prices

Infiniti Q40 fuel cost calculator

Enter what you pay for fuel and how far you drive in a year. The starting prices are the ones the EPA uses for its own yearly fuel-cost estimates. Every cost on this page updates as you type.

At $5.16 a gallon for premium and 15,000 miles a year, the cheapest 2015 Infiniti Q40 to fuel is the Q40, 3.7 L, 6 cyl (22 MPG) at $3,520 a year. The Q40 AWD, 3.7 L, 6 cyl (20 MPG) costs $3,870, so the thriftier trim saves $350 a year and $1,750 over five years.

2015 trimEngineTransmissionDriveFuelCombCost/yrvs cheapest
Q403.7 L, 6 cylAuto (S7)RWDPremium22$3,520cheapest
Q40 AWD3.7 L, 6 cylAuto (S7)AWDPremium20$3,870+$350

Cost per year is miles per year divided by the EPA combined rating, times your fuel price; electric vehicles use the EPA's kWh per 100 miles instead. Rounded to the nearest $10. Your prices are kept in this browser only.

Infiniti Q40 MPG by year

YearBest combinedCityHwyBest trim that yearTrims
2015221927Q40, 3.7 L, 6 cyl, Auto (S7)2

Every Infiniti Q40 trim

YearTrimEngineTransmissionDriveFuelCityHwyCombCO2 g/miFuel cost/yr
2015Q403.7 L, 6 cylAuto (S7)RWDPremium192722412$3,520
2015Q40 AWD3.7 L, 6 cylAuto (S7)AWDPremium182520436$3,870

CO2 is tailpipe grams per mile from the EPA test. Fuel cost per year uses the prices and miles in the calculator above (the EPA's own prices and 15,000 miles a year until you change them); blank when the fuel has no price here (hydrogen, natural gas).

Compare with other 2015 Midsize Cars

VehicleCombinedCityHwy
2015 Nissan Leaf114126101
2015 Mercedes-Benz B-Class Electric Drive848582
2015 Toyota Prius Plug-in Hybrid505149
2015 Honda Accord Hybrid474945
2015 Ford Fusion Hybrid FWD414339
2015 Lexus ES 300h404039

All Midsize Cars ranked by MPG

Questions people ask

What is the best MPG for a Infiniti Q40?

The most efficient Infiniti Q40 the EPA has rated is the 2015 Q40 at 22 MPG combined (19 city, 27 highway).

What MPG does the 2015 Infiniti Q40 get?

2015 Infiniti Q40 trims range from 20 to 22 MPG combined, depending on engine, transmission and drivetrain.

Which Infiniti Q40 has the worst fuel economy?

The 2015 Q40 AWD is the lowest rated at 20 MPG combined.

How much does it cost to fuel a Infiniti Q40 for a year?

At $5.16 a gallon for premium and 15,000 miles a year, the cheapest 2015 Infiniti Q40 to fuel is the Q40, 3.7 L, 6 cyl (22 MPG) at $3,520 a year. The Q40 AWD, 3.7 L, 6 cyl (20 MPG) costs $3,870, so the thriftier trim saves $350 a year and $1,750 over five years.

More from Infiniti: every Infiniti model. Fuel types on this model: Premium. EPA classes: Midsize Cars.