We are 106,000+ car owners sharing real-world car information.

Join Us

Infiniti G MPG


The graph does not display if there are fewer than five results.
Model Year Body/Powertrain MPG  
2012 2012 4dr Sedan 328-hp 3.7L V6 7-sp shiftable automatic RWD 25.56
See all data
With the turbocharged 300hp 3.0L V6 engine, 7-speed shiftable automatic transmission, and rear-wheel drive, the 2012 Infiniti G has been averaging 25.56 MPG (miles per gallon).

The 2012 Infiniti Gs in this analysis were driven mostly on the highway at an average speed of 75 miles per hour (about 100 percent of the miles driven). The rest of the miles were in the suburbs (0 percent), in the city (0 percent), and in heavy traffic (0 percent).

In addition, the average 2012 Infiniti G in this analysis was driven on flat terrain with a light foot and the AC on only some of the time.
2012 2012 4dr Sedan 218-hp 2.5L V6 7-sp shiftable automatic AWD 23.7
See all data

Return to top

What Our Members Are Saying about the Real Gas Mileage of the 2012 Infiniti G

2012 Infiniti G Real Gas Mileage: Cons
2013 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic RWD
Can live with it because of the performance, but wish the mileage was better and premium fuel was not required. see full Infiniti G review
2013 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic AWD
What the powertrain giveth, the fuel economy taketh away. Nissan's VQ engines just seem to be thirsty - if you commute in heavy traffic, especially for short trips, don't be surprised at 15.5-16 mpg tanks. I don't know what mostly-highway commuting would look like, but maybe 22-25 mpg depending on driving style. see full Infiniti G review

2012 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.