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Infiniti G Fuel Economy Data

4dr Sedan 328-hp 3.7L V6 7-sp shiftable automatic AWD

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
flat med light 5 75 5 15 70 18.387
flat med none 5 15 55 25 60 19.133
flat med light 5 75 5 15 70 20.480
flat med light 10 15 50 25 60 17.500
flat med hvy 5 15 55 25 60 16.897
flat med light 10 15 50 25 60 18.000
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flat med light 0 5 25 70 40 18.571
mtns light none 0 30 40 30 60 21.400
flat light none 10 30 40 20 75 17.000
flat lead hvy 10 15 50 25 60 17.800
flat med hvy 5 5 5 85 60 24.571
flat med light 5 75 5 15 70 19.316
flat med light 5 75 5 15 70 18.649
flat med light 0 4 35 61 40 18.649
mtns light none 5 20 30 45 65 20.000
hills light none 0 60 30 10 65 16.504
flat light none 5 10 55 30 65 17.787
flat light none 9 18 55 18 65 16.059
flat light light 24 25 25 26 60 19.000
mtns light none 0 5 10 85 65 28.418
mtns light none 5 10 35 50 65 20.600
flat light none 5 20 45 30 65 18.036
hills light none 10 40 30 20 65 16.605
flat light none 5 10 55 30 65 16.667
hills light none 0 20 60 20 60 15.329
hills light none 10 20 50 20 65 15.043
flat lead none 5 90 0 5 65 15.000

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What Our Members Are Saying about the Real Gas Mileage of the 2009 Infiniti G

2009 Infiniti G Real Gas Mileage: Cons
YearBody/PowertrainComment
2010 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic AWD		 To be honest, it is exactly what I expected, so no real beefs with it. That said, if you are looking for a car that gets better than 19 or so combined, this is not it. Decent freeway miles (24-27/g) but in city it is hard to beat 16/g. see full Infiniti G review
2010 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic AWD		 Fuel economy is poor - about 19 MPG average. see full Infiniti G review
2009 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic AWD		 With such a large displaced engine and so much power you will find that you will have so-so mpg if you drive mainly in the city like I do. Especially if you are a "spirited" driver like I tend to be. I am averaging about 14-16mpg 95% city. On the highway its a different story. I have averaged up to 28mpg @ 78mph, I kind of wish I drove more on the highway. see full Infiniti G review
2009 2dr Coupe 330-horsepower 3.7L V6
7-speed shiftable automatic AWD		 average 18 in town 24 highway. see full Infiniti G review
2009 2dr Coupe 330-horsepower 3.7L V6
7-speed shiftable automatic RWD		 You do not buy a performance car and expect to get good gas mileage. At a 5 mpg or greater difference from my last car, it is taking some getting used too. see full Infiniti G review
2008 2dr Coupe 330-horsepower 3.7L V6
5-speed shiftable automatic RWD		 With both highway and city driving, I would only average 19 mpg with moderate gas pedal use vs 24 mpg in the c300, which is AWD. One month of strictly city driving with heavy gas pedal use I average only 13mpg... Yikes! see full Infiniti G review
2008 4dr Sedan 306-horsepower 3.5L V6
5-speed shiftable automatic RWD		 Not too great. My average is 19 - 20 mpg, mostly city. see full Infiniti G review
2008 4dr Sedan 306-horsepower 3.5L V6
5-speed shiftable automatic AWD		 Takes a lot of fuel... 14L/100km about. see full Infiniti G review
2008 4dr Sedan 306-horsepower 3.5L V6
6-speed manual RWD		 While not terrible, ~20mpg is by no means phenomenal. Relatively comparable cars get ~23-27mpg, but typically also have smaller engines which explains a good portion of the difference. see full Infiniti G review
2008 4dr Sedan 306-horsepower 3.5L V6
5-speed shiftable automatic RWD		 burns too much fuel, I would like another 6 mpg even if power were cut see full Infiniti G review
 

2009 Infiniti G 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 G's real-world MPG based on how and where you drive a car.