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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Infiniti M
Infiniti M Gas Mileage
| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2012 | 4dr Sedan 330-horsepower 3.7L V6 7-speed shiftable automatic AWD |
flat | med | light | 5 | 10 | 15 | 70 | 80 | 22.9 |
| flat | med | light | 5 | 10 | 15 | 70 | 80 | 23.0 | ||
| flat | med | light | 5 | 10 | 15 | 70 | 80 | 24.2 | ||
| 2012 | 4dr Sedan 330-horsepower 3.7L V6 7-speed shiftable automatic AWD |
flat | med | light | 5 | 10 | 15 | 70 | 80 | 23.4 |
| Averages | flat | med | light | 5 | 10 | 15 | 70 | 80 | 23.4 | |
| With the 330-horsepower 3.7L V6 engine, 7-speed shiftable automatic transmission, and all-wheel drive, 2012 Infiniti M fuel economy has been averaging
23.4 MPG (miles per gallon). The 2012 Infiniti Ms in this analysis were driven mostly on the highway at an average speed of 80 miles per hour (about 70 percent of the miles driven). The rest of the miles were in the suburbs (15 percent), in the city (10 percent), and in heavy traffic (5 percent). In addition the average 2012 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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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2012 | 4dr Sedan 302-horsepower 3.5L V6 Hybrid 7-speed shiftable automatic RWD |
flat | light | hvy | 0 | 50 | 20 | 30 | 80 | 22.1 |
| 2012 | 4dr Sedan 302-horsepower 3.5L V6 Hybrid 7-speed shiftable automatic RWD |
flat | light | hvy | 0 | 50 | 20 | 30 | 80 | 22.1 |
| Averages | flat | light | hvy | 0 | 50 | 20 | 30 | 80 | 22.1 | |
| With the 302-horsepower 3.5L V6 Hybrid engine, 7-speed shiftable automatic transmission, and rear-wheel drive, the 2012 Infiniti M has been averaging
22.1 MPG (miles per gallon). The 2012 Infiniti Ms in this analysis were driven mostly in the city (about 50 percent of the miles driven). The rest of the miles were on the highway at an average speed of 80 miles per hour (30 percent), in the suburbs (20 percent), and in heavy traffic (0 percent). In addition the average 2012 Infiniti M in this analysis was driven on flat terrain with a light foot and the AC on most or all of the time. |
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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2011 | 4dr Sedan 420-horsepower 5.6L V8 7-speed shiftable automatic RWD |
flat | med | hvy | 35 | 35 | 5 | 25 | 75 | 19.2 |
| flat | med | light | 35 | 35 | 5 | 25 | 75 | 19.3 | ||
| 2011 | 4dr Sedan 420-horsepower 5.6L V8 7-speed shiftable automatic RWD |
flat | med | hvy | 35 | 35 | 5 | 25 | 75 | 19.3 |
| Averages | flat | med | hvy | 35 | 35 | 5 | 25 | 75 | 19.3 | |
| With the 420-horsepower 5.6L V8 engine, 7-speed shiftable automatic transmission, and rear-wheel drive, 2011 Infiniti M gas mileage has been averaging
19.3 MPG (miles per gallon). The 2011 Infiniti Ms in this analysis were driven mostly in heavy traffic (about 35 percent of the miles driven). The rest of the miles were in the city (35 percent), on the highway at an average speed of 75 miles per hour (25 percent), and in the suburbs (5 percent). In addition the average 2011 Infiniti M in this analysis was driven on flat terrain with a medium foot and the AC on most or all of the time. |
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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2011 | 4dr Sedan 420-horsepower 5.6L V8 7-speed shiftable automatic AWD |
flat | med | hvy | 5 | 79 | 11 | 5 | 70 | 16.5 |
| flat | light | none | 5 | 0 | 15 | 80 | 60 | 19.8 | ||
| flat | med | light | 10 | 15 | 50 | 25 | 70 | 19.0 | ||
| 2011 | 4dr Sedan 420-horsepower 5.6L V8 7-speed shiftable automatic AWD |
flat | med | light | 7 | 31 | 25 | 37 | 67 | 18.4 |
| Averages | flat | med | light | 7 | 31 | 25 | 37 | 67 | 18.4 | |
| With the 420-horsepower 5.6L V8 engine, 7-speed shiftable automatic transmission, and all-wheel drive, 2011 Infiniti M fuel economy has been averaging
18.4 MPG (miles per gallon). The 2011 Infiniti Ms in this analysis were driven mostly on the highway at an average speed of 67 miles per hour (about 37 percent of the miles driven). The rest of the miles were in the city (31 percent), in the suburbs (25 percent), and in heavy traffic (7 percent). In addition the average 2011 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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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2011 | 4dr Sedan 330-horsepower 3.7L V6 7-speed shiftable automatic RWD |
flat | med | light | 5 | 45 | 10 | 40 | 60 | 21.0 |
| 2011 | 4dr Sedan 330-horsepower 3.7L V6 7-speed shiftable automatic RWD |
flat | med | light | 5 | 45 | 10 | 40 | 60 | 21.0 |
| Averages | flat | med | light | 5 | 45 | 10 | 40 | 60 | 21.0 | |
| With the 330-horsepower 3.7L V6 engine, 7-speed shiftable automatic transmission, and rear-wheel drive, the 2011 Infiniti M has been averaging
21.0 MPG (miles per gallon). The 2011 Infiniti Ms in this analysis were driven mostly in the city (about 45 percent of the miles driven). The rest of the miles were on the highway at an average speed of 60 miles per hour (40 percent), in the suburbs (10 percent), and in heavy traffic (5 percent). In addition the average 2011 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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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2011 | 4dr Sedan 330-horsepower 3.7L V6 7-speed shiftable automatic AWD |
flat | light | none | 0 | 50 | 0 | 50 | 60 | 16.0 |
| flat | med | light | 11 | 44 | 33 | 11 | 75 | 19.5 | ||
| flat | med | light | 10 | 25 | 50 | 15 | 70 | 20.0 | ||
| flat | med | light | 0 | 0 | 25 | 75 | 80 | 22.3 | ||
| hills | med | light | 5 | 2 | 43 | 50 | 65 | 22.0 | ||
| 2011 | 4dr Sedan 330-horsepower 3.7L V6 7-speed shiftable automatic AWD |
flat | med | light | 5 | 24 | 30 | 40 | 70 | 20.0 |
| Averages | flat | med | light | 5 | 24 | 30 | 40 | 70 | 20.0 | |
| With the 330-horsepower 3.7L V6 engine, 7-speed shiftable automatic transmission, and all-wheel drive, 2011 Infiniti M gas mileage has been averaging
20.0 MPG (miles per gallon). The 2011 Infiniti Ms in this analysis were driven mostly on the highway at an average speed of 70 miles per hour (about 40 percent of the miles driven). The rest of the miles were in the suburbs (30 percent), in the city (24 percent), and in heavy traffic (5 percent). In addition the average 2011 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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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2010 | 4dr Sedan 325-horsepower 4.5L V8 5-speed shiftable automatic AWD |
flat | med | none | 10 | 10 | 40 | 40 | 75 | 14.0 |
| 2010 | 4dr Sedan 325-horsepower 4.5L V8 5-speed shiftable automatic AWD |
flat | med | none | 10 | 10 | 40 | 40 | 75 | 14.0 |
| Averages | flat | med | none | 10 | 10 | 40 | 40 | 75 | 14.0 | |
| With the 325-horsepower 4.5L V8 engine, 5-speed shiftable automatic transmission, and all-wheel drive, 2010 Infiniti M fuel economy has been averaging
14.0 MPG (miles per gallon). The 2010 Infiniti Ms in this analysis were driven mostly on the highway at an average speed of 75 miles per hour (about 40 percent of the miles driven). The rest of the miles were in the suburbs (40 percent), in heavy traffic (10 percent), and in the city (10 percent). In addition the average 2010 Infiniti M in this analysis was driven on flat terrain with a medium foot and the AC not used at all. |
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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2010 | 4dr Sedan 303-horsepower 3.5L V6 7-speed shiftable automatic RWD |
flat | light | hvy | 0 | 3 | 12 | 85 | 70 | 22.0 |
| 2010 | 4dr Sedan 303-horsepower 3.5L V6 7-speed shiftable automatic RWD |
flat | light | hvy | 0 | 3 | 12 | 85 | 70 | 22.0 |
| Averages | flat | light | hvy | 0 | 3 | 12 | 85 | 70 | 22.0 | |
| With the 303-horsepower 3.5L V6 engine, 7-speed shiftable automatic transmission, and rear-wheel drive, the 2010 Infiniti M has been averaging
22.0 MPG (miles per gallon). The 2010 Infiniti Ms in this analysis were driven mostly on the highway at an average speed of 70 miles per hour (about 85 percent of the miles driven). The rest of the miles were in the suburbs (12 percent), in the city (3 percent), and in heavy traffic (0 percent). In addition the average 2010 Infiniti M in this analysis was driven on flat terrain with a light foot and the AC on most or all of the time. |
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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2009 | 4dr Sedan 325-horsepower 4.5L V8 5-speed shiftable automatic AWD |
flat | med | none | 0 | 0 | 0 | 100 | 75 | 15.0 |
| flat | lead | none | 0 | 0 | 0 | 100 | 75 | 13.0 | ||
| flat | light | none | 0 | 0 | 0 | 100 | 65 | 17.0 | ||
| flat | med | none | 0 | 0 | 0 | 100 | 75 | 14.5 | ||
| flat | lead | none | 0 | 0 | 0 | 100 | 75 | 14.0 | ||
| 2009 | 4dr Sedan 325-horsepower 4.5L V8 5-speed shiftable automatic AWD |
flat | med | none | 0 | 0 | 0 | 100 | 73 | 14.7 |
| Averages | flat | med | none | 0 | 0 | 0 | 100 | 73 | 14.7 | |
| With the 325-horsepower 4.5L V8 engine, 5-speed shiftable automatic transmission, and all-wheel drive, 2009 Infiniti M gas mileage has been averaging
14.7 MPG (miles per gallon). The 2009 Infiniti Ms in this analysis were driven mostly on the highway at an average speed of 73 miles per hour (about 100 percent of the miles driven). The rest of the miles were in heavy traffic (0 percent), in the suburbs (0 percent), and in the city (0 percent). In addition the average 2009 Infiniti M in this analysis was driven on flat terrain with a medium foot and the AC not used at all. |
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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2009 | 4dr Sedan 303-horsepower 3.5L V6 7-speed shiftable automatic RWD |
flat | med | light | 0 | 0 | 80 | 20 | 60 | 22.0 |
| 2009 | 4dr Sedan 303-horsepower 3.5L V6 7-speed shiftable automatic RWD |
flat | med | light | 0 | 0 | 80 | 20 | 60 | 22.0 |
| Averages | flat | med | light | 0 | 0 | 80 | 20 | 60 | 22.0 | |
| With the 303-horsepower 3.5L V6 engine, 7-speed shiftable automatic transmission, and rear-wheel drive, 2009 Infiniti M fuel economy has been averaging
22.0 MPG (miles per gallon). The 2009 Infiniti Ms in this analysis were driven mostly in the suburbs (about 80 percent of the miles driven). The rest of the miles were on the highway at an average speed of 60 miles per hour (20 percent), in heavy traffic (0 percent), and in the city (0 percent). In addition the average 2009 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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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2009 | 4dr Sedan 303-horsepower 3.5L V6 5-speed shiftable automatic AWD |
hills | med | light | 20 | 40 | 10 | 30 | 65 | 21.0 |
| 2009 | 4dr Sedan 303-horsepower 3.5L V6 5-speed shiftable automatic AWD |
hills | med | light | 20 | 40 | 10 | 30 | 65 | 21.0 |
| Averages | hills | med | light | 20 | 40 | 10 | 30 | 65 | 21.0 | |
| With the 303-horsepower 3.5L V6 engine, 5-speed shiftable automatic transmission, and all-wheel drive, the 2009 Infiniti M has been averaging
21.0 MPG (miles per gallon). The 2009 Infiniti Ms in this analysis were driven mostly in the city (about 40 percent of the miles driven). The rest of the miles were on the highway at an average speed of 65 miles per hour (30 percent), in heavy traffic (20 percent), and in the suburbs (10 percent). In addition the average 2009 Infiniti M in this analysis was driven on hilly terrain with a medium foot and the AC on only some of the time. |
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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2008 | 4dr Sedan 325-horsepower 4.5L V8 5-speed shiftable automatic RWD |
flat | lead | hvy | 35 | 15 | 5 | 45 | 75 | 17.0 |
| 2008 | 4dr Sedan 325-horsepower 4.5L V8 5-speed shiftable automatic RWD |
flat | lead | hvy | 35 | 15 | 5 | 45 | 75 | 17.0 |
| Averages | flat | lead | hvy | 35 | 15 | 5 | 45 | 75 | 17.0 | |
| With the 325-horsepower 4.5L V8 engine, 5-speed shiftable automatic transmission, and rear-wheel drive, 2008 Infiniti M gas mileage has been averaging
17.0 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 (5 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. |
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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2008 | 4dr Sedan 275-horsepower 3.5L V6 5-speed shiftable automatic RWD |
flat | med | none | 60 | 10 | 20 | 10 | 70 | 20.0 |
| hills | med | light | 26 | 21 | 25 | 28 | 60 | 19.0 | ||
| hills | med | hvy | 25 | 25 | 0 | 50 | 60 | 19.8 | ||
| flat | med | light | 5 | 20 | 45 | 30 | 75 | 19.5 | ||
| flat | med | hvy | 2 | 8 | 25 | 65 | 75 | 18.0 | ||
| 2008 | 4dr Sedan 275-horsepower 3.5L V6 5-speed shiftable automatic RWD |
flat | med | light | 24 | 17 | 23 | 37 | 68 | 19.3 |
| Averages | flat | med | light | 24 | 17 | 23 | 37 | 68 | 19.3 | |
| With the 275-horsepower 3.5L V6 engine, 5-speed shiftable automatic transmission, and rear-wheel drive, 2008 Infiniti M fuel economy has been averaging
19.3 MPG (miles per gallon). The 2008 Infiniti Ms in this analysis were driven mostly on the highway at an average speed of 68 miles per hour (about 37 percent of the miles driven). The rest of the miles were in heavy traffic (24 percent), in the suburbs (23 percent), and in the city (17 percent). In addition the average 2008 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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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2008 | 4dr Sedan 275-horsepower 3.5L V6 5-speed shiftable automatic AWD |
flat | med | light | 5 | 5 | 0 | 90 | 80 | 22.0 |
| flat | med | none | 10 | 20 | 20 | 50 | 70 | 20.0 | ||
| hills | light | none | 5 | 20 | 25 | 50 | 60 | 19.7 | ||
| flat | light | hvy | 25 | 5 | 25 | 45 | 60 | 16.5 | ||
| mtns | med | none | 1 | 0 | 3 | 96 | 70 | 22.0 | ||
| 2008 | 4dr Sedan 275-horsepower 3.5L V6 5-speed shiftable automatic AWD |
hills | med | light | 9 | 10 | 15 | 66 | 68 | 20.0 |
| Averages | hills | med | light | 9 | 10 | 15 | 66 | 68 | 20.0 | |
| With the 275-horsepower 3.5L V6 engine, 5-speed shiftable automatic transmission, and all-wheel drive, the 2008 Infiniti M has been averaging
20.0 MPG (miles per gallon). The 2008 Infiniti Ms in this analysis were driven mostly on the highway at an average speed of 68 miles per hour (about 66 percent of the miles driven). The rest of the miles were in the suburbs (15 percent), in the city (10 percent), and in heavy traffic (9 percent). In addition the average 2008 Infiniti M in this analysis was driven on hilly terrain with a medium foot and the AC on only some of the time. |
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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2007 | 4dr Sedan 325-horsepower 4.5L V8 5-speed shiftable automatic RWD |
flat | light | light | 0 | 15 | 45 | 40 | 65 | 16.9 |
| flat | med | hvy | 10 | 60 | 10 | 20 | 70 | 18.5 | ||
| flat | med | hvy | 10 | 0 | 40 | 50 | 60 | 18.1 | ||
| 2007 | 4dr Sedan 325-horsepower 4.5L V8 5-speed shiftable automatic RWD |
flat | med | hvy | 7 | 25 | 32 | 37 | 65 | 17.8 |
| Averages | flat | med | hvy | 7 | 25 | 32 | 37 | 65 | 17.8 | |
| With the 325-horsepower 4.5L V8 engine, 5-speed shiftable automatic transmission, and rear-wheel drive, 2007 Infiniti M gas mileage has been averaging
17.8 MPG (miles per gallon). The 2007 Infiniti Ms in this analysis were driven mostly on the highway at an average speed of 65 miles per hour (about 37 percent of the miles driven). The rest of the miles were in the suburbs (32 percent), in the city (25 percent), and in heavy traffic (7 percent). In addition the average 2007 Infiniti M in this analysis was driven on flat terrain with a medium foot and the AC on most or all of the time. |
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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2007 | 4dr Sedan 275-horsepower 3.5L V6 5-speed shiftable automatic RWD |
flat | med | hvy | 20 | 20 | 20 | 40 | 75 | 20.2 |
| flat | light | light | 23 | 23 | 25 | 29 | 80 | 23.5 | ||
| flat | med | light | 10 | 50 | 20 | 20 | 75 | 18.4 | ||
| flat | light | none | 23 | 24 | 25 | 29 | 65 | 20.6 | ||
| flat | light | light | 23 | 23 | 25 | 29 | 60 | 16.2 | ||
| 2007 | 4dr Sedan 275-horsepower 3.5L V6 5-speed shiftable automatic RWD |
flat | light | light | 20 | 28 | 23 | 29 | 71 | 19.8 |
| Averages | flat | light | light | 20 | 28 | 23 | 29 | 71 | 19.8 | |
| With the 275-horsepower 3.5L V6 engine, 5-speed shiftable automatic transmission, and rear-wheel drive, 2007 Infiniti M fuel economy has been averaging
19.8 MPG (miles per gallon). The 2007 Infiniti Ms in this analysis were driven mostly on the highway at an average speed of 71 miles per hour (about 29 percent of the miles driven). The rest of the miles were in the city (28 percent), in the suburbs (23 percent), and in heavy traffic (20 percent). In addition the average 2007 Infiniti M in this analysis was driven on flat terrain with a light foot and the AC on only some of the time. |
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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2007 | 4dr Sedan 275-horsepower 3.5L V6 5-speed shiftable automatic AWD |
flat | light | light | 0 | 10 | 70 | 20 | 75 | 17.4 |
| flat | med | light | 0 | 15 | 28 | 57 | 65 | 19.2 | ||
| flat | light | none | 5 | 5 | 60 | 30 | 60 | 20.9 | ||
| flat | med | none | 5 | 5 | 60 | 30 | 60 | 19.0 | ||
| flat | med | none | 0 | 40 | 35 | 25 | 65 | 19.3 | ||
| 2007 | 4dr Sedan 275-horsepower 3.5L V6 5-speed shiftable automatic AWD |
flat | med | none | 2 | 15 | 51 | 32 | 65 | 19.2 |
| Averages | flat | med | none | 2 | 15 | 51 | 32 | 65 | 19.2 | |
| With the 275-horsepower 3.5L V6 engine, 5-speed shiftable automatic transmission, and all-wheel drive, the 2007 Infiniti M has been averaging
19.2 MPG (miles per gallon). The 2007 Infiniti Ms in this analysis were driven mostly in the suburbs (about 51 percent of the miles driven). The rest of the miles were on the highway at an average speed of 65 miles per hour (32 percent), in the city (15 percent), and in heavy traffic (2 percent). In addition the average 2007 Infiniti M in this analysis was driven on flat terrain with a medium foot and the AC not used at all. |
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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2006 | 4dr Sedan 335-horsepower 4.5L V8 5-speed shiftable automatic RWD |
flat | light | none | 5 | 5 | 0 | 90 | 75 | 21.0 |
| flat | med | hvy | 10 | 10 | 45 | 35 | 80 | 18.9 | ||
| hills | light | hvy | 0 | 10 | 10 | 80 | 75 | 19.2 | ||
| flat | light | hvy | 25 | 13 | 13 | 50 | 75 | 17.6 | ||
| flat | light | light | 11 | 28 | 17 | 44 | 60 | 19.9 | ||
| 2006 | 4dr Sedan 335-horsepower 4.5L V8 5-speed shiftable automatic RWD |
flat | light | light | 10 | 13 | 17 | 60 | 73 | 19.3 |
| Averages | flat | light | light | 10 | 13 | 17 | 60 | 73 | 19.3 | |
| With the 335-horsepower 4.5L V8 engine, 5-speed shiftable automatic transmission, and rear-wheel drive, 2006 Infiniti M gas mileage has been averaging
19.3 MPG (miles per gallon). The 2006 Infiniti Ms in this analysis were driven mostly on the highway at an average speed of 73 miles per hour (about 60 percent of the miles driven). The rest of the miles were in the suburbs (17 percent), in the city (13 percent), and in heavy traffic (10 percent). In addition the average 2006 Infiniti M in this analysis was driven on flat terrain with a light foot and the AC on only some of the time. |
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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2006 | 4dr Sedan 280-horsepower 3.5L V6 5-speed shiftable automatic RWD |
flat | lead | light | 13 | 13 | 25 | 50 | 60 | 19.0 |
| flat | med | none | 0 | 67 | 33 | 0 | N/A | 20.0 | ||
| flat | med | light | 25 | 25 | 25 | 25 | 70 | 19.0 | ||
| flat | light | hvy | 0 | 40 | 10 | 50 | 70 | 22.5 | ||
| flat | lead | none | 2 | 3 | 75 | 20 | 80 | 17.4 | ||
| 2006 | 4dr Sedan 280-horsepower 3.5L V6 5-speed shiftable automatic RWD |
flat | med | light | 8 | 30 | 34 | 29 | 70 | 19.6 |
| Averages | flat | med | light | 8 | 30 | 34 | 29 | 70 | 19.6 | |
| With the 280-horsepower 3.5L V6 engine, 5-speed shiftable automatic transmission, and rear-wheel drive, 2006 Infiniti M fuel economy has been averaging
19.6 MPG (miles per gallon). The 2006 Infiniti Ms in this analysis were driven mostly in the suburbs (about 34 percent of the miles driven). The rest of the miles were in the city (30 percent), on the highway at an average speed of 70 miles per hour (29 percent), and in heavy traffic (8 percent). In addition the average 2006 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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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2006 | 4dr Sedan 280-horsepower 3.5L V6 5-speed shiftable automatic AWD |
flat | med | light | 0 | 0 | 18 | 82 | 65 | 19.4 |
| flat | light | light | 0 | 5 | 35 | 60 | 80 | 21.5 | ||
| flat | med | light | 0 | 0 | 19 | 81 | 70 | 18.2 | ||
| flat | med | none | 10 | 15 | 35 | 40 | 68 | 22.8 | ||
| flat | med | light | 0 | 0 | 25 | 75 | 65 | 18.9 | ||
| 2006 | 4dr Sedan 280-horsepower 3.5L V6 5-speed shiftable automatic AWD |
flat | med | light | 2 | 4 | 26 | 68 | 70 | 20.2 |
| Averages | flat | med | light | 2 | 4 | 26 | 68 | 70 | 20.2 | |
| With the 280-horsepower 3.5L V6 engine, 5-speed shiftable automatic transmission, and all-wheel drive, the 2006 Infiniti M has been averaging
20.2 MPG (miles per gallon). The 2006 Infiniti Ms in this analysis were driven mostly on the highway at an average speed of 70 miles per hour (about 68 percent of the miles driven). The rest of the miles were in the suburbs (26 percent), in the city (4 percent), and in heavy traffic (2 percent). In addition the average 2006 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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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2004 | 4dr Sedan 340-horsepower 4.5L V8 5-speed shiftable automatic RWD |
hills | lead | light | 5 | 5 | 50 | 40 | 75 | 20.2 |
| flat | light | light | 20 | 10 | 40 | 30 | 80 | 19.5 | ||
| 2004 | 4dr Sedan 340-horsepower 4.5L V8 5-speed shiftable automatic RWD |
hills | med | light | 13 | 8 | 45 | 35 | 78 | 19.9 |
| Averages | hills | med | light | 13 | 8 | 45 | 35 | 78 | 19.9 | |
| With the 340-horsepower 4.5L V8 engine, 5-speed shiftable automatic transmission, and rear-wheel drive, 2004 Infiniti M gas mileage has been averaging
19.9 MPG (miles per gallon). The 2004 Infiniti Ms in this analysis were driven mostly in the suburbs (about 45 percent of the miles driven). The rest of the miles were on the highway at an average speed of 78 miles per hour (35 percent), in heavy traffic (13 percent), and in the city (8 percent). In addition the average 2004 Infiniti M in this analysis was driven on hilly terrain with a medium foot and the AC on only some of the time. |
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| Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG |
| 2003 | 4dr Sedan 340-horsepower 4.5L V8 5-speed shiftable automatic RWD |
flat | med | light | 15 | 10 | 25 | 50 | 60 | 18.0 |
| flat | med | hvy | 64 | 11 | 4 | 21 | 65 | 21.5 | ||
| flat | med | light | 5 | 15 | 20 | 60 | 75 | 18.3 | ||
| flat | lead | none | 5 | 15 | 20 | 60 | 75 | 18.2 | ||
| flat | light | hvy | 0 | 50 | 30 | 20 | 62 | 17.0 | ||
| 2003 | 4dr Sedan 340-horsepower 4.5L V8 5-speed shiftable automatic RWD |
flat | med | light | 18 | 20 | 20 | 42 | 67 | 18.6 |
| Averages | flat | med | light | 18 | 20 | 20 | 42 | 67 | 18.6 | |
| With the 340-horsepower 4.5L V8 engine, 5-speed shiftable automatic transmission, and rear-wheel drive, 2003 Infiniti M fuel economy has been averaging
18.6 MPG (miles per gallon). The 2003 Infiniti Ms in this analysis were driven mostly on the highway at an average speed of 67 miles per hour (about 42 percent of the miles driven). The rest of the miles were in the city (20 percent), in the suburbs (20 percent), and in heavy traffic (18 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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If you are not a TrueDelta member, you can see only five Infiniti M MPG fuel economy averages for each powertrain. Log in or join us to see them all.
What Our Members Are Saying about the Real Infiniti M MPG
| Infiniti M Fuel Economy: Pros | ||
| Year | Body/Powertrain | Comment |
| 2011 | 4dr Sedan 330-horsepower 3.7L V6 7-speed shiftable automatic AWD |
Fuel economy is abysmal around town. I guess that's the price you pay for going grocery shopping with over 300 HP. However, on the highway it's very possible to exceed the EPA mileage number. |
| 2006 | 4dr Sedan 335-horsepower 4.5L V8 5-speed shiftable automatic RWD |
V8 power--it's a gas guzzler and could've used an extra 1 or 2 speeds more since it revs so high at highway speeds. |
| Infiniti M Fuel Economy: Cons | ||
| Year | Body/Powertrain | Comment |
| 2012 | 4dr Sedan 330-horsepower 3.7L V6 7-speed shiftable automatic AWD |
I get around 17 city/25 highway. Not impressive but this is not why you buy a car like this. |
| 2011 | 4dr Sedan 420-horsepower 5.6L V8 7-speed shiftable automatic AWD |
Fairly poor. |
| 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 |
| 2008 | 4dr Sedan 275-horsepower 3.5L V6 5-speed shiftable automatic RWD |
average 21 hwy |
| 2008 | 4dr Sedan 275-horsepower 3.5L V6 5-speed shiftable automatic AWD |
Gas mileage stinks. |
| 2007 | 4dr Sedan 325-horsepower 4.5L V8 5-speed shiftable automatic RWD |
16.9 in city traffice 18.nothing on the highway...blah! |
| 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... |
| 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. |
| 2006 | 4dr Sedan 280-horsepower 3.5L V6 5-speed shiftable automatic RWD |
About 19-20 mpg overall with premium fuel... could be better. |
| 2006 | 4dr Sedan 280-horsepower 3.5L V6 5-speed shiftable automatic RWD |
There should be an extra gear to allow better mileage on the highway. |
| 2006 | 4dr Sedan 280-horsepower 3.5L V6 5-speed shiftable automatic RWD |
Often avergaed as low as 16mpg on a tank-full of gas. |
| 2006 | 4dr Sedan 280-horsepower 3.5L V6 5-speed shiftable automatic AWD |
Simply bad in city and highway fuel economy |
| 2003 | 4dr Sedan 340-horsepower 4.5L V8 5-speed shiftable automatic RWD |
Lower than typical ... particularly around town, but not surprising, I suppose. |
