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Infiniti M MPG

MPG Number of Vehicles
17 miles per gallon 2 vehicles
18 miles per gallon 1 vehicles
19 miles per gallon 2 vehicles
20 miles per gallon 6 vehicles
21 miles per gallon 1 vehicles
22 miles per gallon 2 vehicles
Model Year Body/Powertrain MPG  
2008 2008 4dr Sedan 420-hp 5.6L V8 7-sp shiftable automatic RWD 17
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With the 420-horsepower 5.6L V8 engine, 7-speed shiftable automatic transmission, and rear-wheel drive, the 2008 Infiniti M has been averaging 17 MPG (miles per gallon).

The 2008 Infiniti Ms in this analysis were driven mostly on the highway at an average speed of 75 miles per hour (about 45 percent of the miles driven). The rest of the miles were in heavy traffic (35 percent), in the city (15 percent), and in the suburbs (0 percent).

In addition, the average 2008 Infiniti M in this analysis was driven on flat terrain with a lead foot and the AC on most or all of the time.
2008 2008 4dr Sedan 330-hp 3.7L V6 7-sp shiftable automatic AWD 20.08
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2008 2008 4dr Sedan 330-hp 3.7L V6 7-sp shiftable automatic RWD 19.55
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What Our Members Are Saying about the Real Gas Mileage of the 2008 Infiniti M

2008 Infiniti M Real Gas Mileage: Cons
YearBody/PowertrainComment
2008 4dr Sedan 275-horsepower 3.5L V6
5-speed shiftable automatic AWD		 Gas mileage stinks. see full Infiniti M review
2008 4dr Sedan 275-horsepower 3.5L V6
5-speed shiftable automatic RWD		 average 21 hwy see full Infiniti M review
2008 4dr Sedan 275-horsepower 3.5L V6
5-speed shiftable automatic RWD		 needs a 6th gear, since there is too much revving in 5th gear while cruising. they put a 6th gear in the 2009 version see full Infiniti M review
2007 4dr Sedan 325-horsepower 4.5L V8
5-speed shiftable automatic RWD		 16.9 in city traffice 18.nothing on the highway...blah! see full Infiniti M review
2007 4dr Sedan 275-horsepower 3.5L V6
5-speed shiftable automatic AWD		 Large cars get poor milage. 18-20 mpg would like an option to trade some performance for added MPG. see full Infiniti M review
2007 4dr Sedan 325-horsepower 4.5L V8
5-speed shiftable automatic RWD		 Averages about 18.5 mpg in mixed suburban/urban/freeway driving. Can get thirsty when you get on the gas, but duh... see full Infiniti M review
 

2008 Infiniti M Gas Mileage (MPG)

Unlike other fuel economy surveys, TrueDelta's Real-World Gas Mileage Survey includes questions about how and where a car was driven. So you can get an idea of the Infiniti M's real-world MPG based on how and where you drive a car.