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Infiniti M MPG

MPG Number of Vehicles
15 miles per gallon 1 vehicles
16 miles per gallon 0 vehicles
17 miles per gallon 1 vehicles
18 miles per gallon 3 vehicles
19 miles per gallon 2 vehicles
20 miles per gallon 1 vehicles
21 miles per gallon 0 vehicles
22 miles per gallon 1 vehicles
Model Year Body/Powertrain MPG  
2003 2003 4dr Sedan 420-hp 5.6L V8 7-sp shiftable automatic RWD 18.43
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With the 420-horsepower 5.6L V8 engine, 7-speed shiftable automatic transmission, and rear-wheel drive, the 2003 Infiniti M has been averaging 18.43 MPG (miles per gallon).

The 2003 Infiniti Ms in this analysis were driven mostly on the highway at an average speed of 76 miles per hour (about 36.2 percent of the miles driven). The rest of the miles were in the city (33.4 percent), in heavy traffic (13.2 percent), and in the suburbs (0 percent).

In addition, the average 2003 Infiniti M in this analysis was driven on flat terrain with a medium foot and the AC on only some of the time.

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What Our Members Are Saying about the Real Gas Mileage of the 2003 Infiniti M

2003 Infiniti M Real Gas Mileage: Cons
2003 4dr Sedan 340-horsepower 4.5L V8
5-speed shiftable automatic RWD
Lower than typical ... particularly around town, but not surprising, I suppose. see full Infiniti M review

2003 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.

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