Infiniti M37 MPG — Gas Mileage by Engine and Year

Quick answer

Against 417 other V6 cars rated 2011–2013, the M37 sits right on their 20.8 mpg average.

Every Infiniti M37 engine, compared

The Infiniti M37 was rated in a single specification, so its gas mileage does not vary by version — only by model year. Yearly cost assumes 12,000 miles at $3.20 a gallon.

FIG.01·Infiniti M37 gas mileage by engine
Engine	Combined	City / Highway	Years	Fuel per year
3.7L 6-cyl	21	18 / 26	2011–2013	$1,829

ROWS 1·SOURCE EPA fueleconomy.gov + ForCar

What that actually costs

Against its rivals in the same model years, the Toyota Camry gets 30.9 mpg, the Honda Accord 31.6 mpg and the Toyota Prius 49 mpg, next to 21 mpg for the 2013 M37. The M37 costs the most of them to run: $1,045 a year more than the Toyota Prius.

FIG.02·Infiniti M37 fuel cost
Measure	Value
Cost per mile (2013)	$0.152
Fuel per year	$1,829
Fuel over five years	$9,145
Against other V6 cars, 2011–2013	−$17 a year
EPA's own estimate	$3,650 a year

ROWS 5·SOURCE ForCar, computed from EPA ratings

City or highway — who is this car for

The 2013 Infiniti M37 gives up 8 mpg in town: 26 on the highway against 18 in the city, $656 a year if every mile were city driving.

FIG.03·Infiniti M37 city versus highway
Measure	Value	Reading
City (2013)	18 mpg	$2,133 a year if you only drive in town
Highway	26 mpg	$1,477 a year if you mostly commute
Gap	+8 mpg (44%)	Wide — this car dislikes traffic

ROWS 3·SOURCE EPA fueleconomy.gov + ForCar

How the M37 changed over the years

Combined figure across the 3 model years the M37 was rated in, all of them at 21 mpg.

FIG.04·Infiniti M37 gas mileage by model year
Model year	Combined	City / Highway	Engines offered	Fuel per year
2013	21	18 / 26	1	$1,829
2012	21	18 / 26	1	$1,829
2011	21	18 / 26	1	$1,829

ROWS 3·SOURCE EPA fueleconomy.gov + ForCar

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How we count

This page rests on 3 EPA ratings of the Infiniti M37 — 1 engine across 2011–2013. The mileage is EPA's laboratory figure, unchanged; the yearly bill is ours, at 12,000 miles and $3.20 a gallon, against EPA's own estimate of $3,650. Full method.

Everything on the Infiniti M37

Recalls6 campaigns Reliability4.5/5 Common problems85 complaints Check a VINAgainst this exact build DimensionsSize, weight, generations Cargo space15 cu ft Used prices78 listings What yours is worthValue by year & mileage Insurance costEstimated per year Window stickerOriginal Monroney label Decode a VINWhat each character means About this car2011–2013

Frequently asked questions

What mpg does the 2013 Infiniti M37 get?

21 mpg combined, 18 city and 26 highway, per EPA. Across every year since 2011 the M37 has averaged 21 mpg.

Is the 2013 M37 more efficient than the 2012?

About the same: 21 against 21 mpg combined.

Does the M37 get better gas mileage than the Toyota Camry?

No: 21 mpg for the 2013 M37 against 30.9 for the 2014 Toyota Camry, about $586 a year more to run.

Gas mileage ratings from EPA fueleconomy.gov, unadjusted. Running cost computed by ForCar at 12,000 miles a year and $3.20 a gallon. Last updated Nov 2026. — ForCar Reviewed by Denis Kataev, founder of ForCar.

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