2015 · Midsize Car · Gas

2015 Infiniti Q40 MPG & fuel economy

The 2015 Infiniti Q40 is a midsize car offered in 2 EPA-rated configurations. The most efficient version returns 22 MPG combined (19 city / 27 highway) on premium gasoline. Across the lineup, combined ratings range from 20 to 22 MPG. Among 69 midsize cars rated for 2015, it ranks 55th for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $2,693 a year to fuel.

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Combined 22 MPG 19 MPG city · 27 MPG hwy

Driving range — not published for this model

Your fuel cost $2,693 15,000 mi/yr · $17.95 per 100 mi

Class rank, 2015 #55 of 69 Midsize Cars by fuel cost

What will it cost you?

Your mileage and prices are saved and used across the site.

Miles per year Premium gas $/gal

Fuel average

The 2015 Infiniti Q40's fuel average is 9.4 km/L (10.7 L/100 km), or 22 MPG combined: 8.1 km/L in the city and 11.5 km/L on the highway.

	MPG	km/L	L/100 km
City	19	8.1	12.4
Highway	27	11.5	8.7
Combined	22	9.4	10.7

How it ranks among 2015 Midsize Cars

Full class ranking →

1Nissan Leaf114 MPGe $799
2Toyota Prius Plug-in Hybrid95 MPGe + 50 MPG $887
3Toyota Prius48 MPG $969
4Honda Accord Hybrid47 MPG $989
5Mercedes-Benz B-Class Electric Drive84 MPGe $1,080
···
55Infiniti Q4022 MPG $2,693
···
69Ferrari FF13 MPG $4,558

2015 Q40Other midsize carsClass median: $1,850/yr

Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.

2 EPA-rated configurations

Configuration	Type	City	Hwy	Combined	Range	Your cost / yr
RWD · 3.7L 6-cyl · 7-speed automatic Q40	Gas	19 MPG	27 MPG	22 MPG	—	$2,693
AWD · 3.7L 6-cyl · 7-speed automatic Q40 AWD	Gas	18 MPG	25 MPG	20 MPG	—	$2,962

Specs (most efficient configuration)

Fuel: Premium gasoline
Engine / motor: 3.7L 6-cyl
Transmission: 7-speed automatic
Drivetrain: RWD
Passenger volume: 99 cu ft
Cargo volume: 14 cu ft
Tailpipe CO₂: 412 g/mi
EPA fuel economy score: 5/10
EPA greenhouse gas score: 5/10

2015 Infiniti Q40 vs. rivals

vs Lexus GS 23 MPG · $2,576/yr GS saves $117/yr vs Acura RLX 23 MPG · $2,576/yr RLX saves $117/yr vs Audi S6 20 MPG · $2,962/yr Q40 saves $269/yr vs Audi S8 20 MPG · $2,962/yr Q40 saves $269/yr vs Jaguar XF 23 MPG · $2,576/yr XF saves $117/yr vs Mercedes-Benz E-Class Hybrid 25 MPG · $2,370/yr E-Class Hybrid saves $323/yr vs Audi A7 21 MPG · $2,821/yr Q40 saves $128/yr vs Lexus LS Hybrid 20 MPG · $2,962/yr Q40 saves $269/yr vs Audi S7 20 MPG · $2,962/yr Q40 saves $269/yr vs Audi RS 7 18 MPG · $3,292/yr Q40 saves $598/yr vs Mercedes-Benz E-Class 23 MPG · $2,576/yr E-Class saves $117/yr

Compare the 2015 Q40

With any other car from any year, including other Q40 model years. Type a year to jump, e.g. "2015 Accord".

Frequently asked questions

What is the gas mileage of the 2015 Infiniti Q40?

Up to 22 MPG combined (19 city / 27 highway); ratings range from 20 to 22 MPG depending on configuration.

What fuel does the 2015 Infiniti Q40 use?

Premium gasoline (premium is required or recommended by the manufacturer).

What is the fuel average in km/L for the 2015 Infiniti Q40?