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.
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Infiniti G
Infiniti G 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 |
| 2010 | 4dr Sedan 328-horsepower 3.7L V6 6-speed manual RWD |
flat | light | none | 0 | 11 | 7 | 82 | 70 | 29.5 |
| flat | lead | light | 10 | 10 | 0 | 80 | 70 | 22.1 | ||
| flat | med | light | 0 | 13 | 9 | 78 | 70 | 27.0 | ||
| flat | lead | none | 20 | 30 | 20 | 30 | 74 | 18.4 | ||
| flat | med | hvy | 0 | 100 | 0 | 0 | N/A | 18.5 | ||
| 2010 | 4dr Sedan 328-horsepower 3.7L V6 6-speed manual RWD |
flat | med | light | 6 | 33 | 7 | 54 | 71 | 23.1 |
| Averages | flat | med | light | 6 | 33 | 7 | 54 | 71 | 23.1 | |
| With the 328-horsepower 3.7L V6 engine, 6-speed manual transmission, and rear-wheel drive, 2010 Infiniti G fuel economy has been averaging
23.1 MPG (miles per gallon). The 2010 Infiniti Gs in this analysis were driven mostly on the highway at an average speed of 71 miles per hour (about 54 percent of the miles driven). The rest of the miles were in the city (33 percent), in the suburbs (7 percent), and in heavy traffic (6 percent). In addition the average 2010 Infiniti G 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 Infiniti G MPG
| Infiniti G Fuel Economy: Cons | ||
| Year | Body/Powertrain | Comment |
| 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. |
| 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. |
| 2009 | 2dr Coupe 330-horsepower 3.7L V6 7-speed shiftable automatic AWD |
average 18 in town 24 highway. |
| 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. |
| 2008 | 4dr Sedan 306-horsepower 3.5L V6 5-speed shiftable automatic AWD |
With all that power available its hard not to use it. Expect in city driving to deliver less than 20mpg. |
| 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 |
| 2008 | 4dr Sedan 306-horsepower 3.5L V6 5-speed shiftable automatic RWD |
Not too great. My average is 19 - 20 mpg, mostly city. |
| 2008 | 4dr Sedan 306-horsepower 3.5L V6 5-speed shiftable automatic AWD |
Takes a lot of fuel... 14L/100km about. |
| 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. |
| 2008 | 4dr Sedan 306-horsepower 3.5L V6 5-speed shiftable automatic AWD |
Can live with it because of the performance, but wish the mileage was better and premium fuel was not required. |
| 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! |
| 2008 | 4dr Sedan 306-horsepower 3.5L V6 5-speed shiftable automatic RWD |
The car is just not about fuel economy. You pay for performance. I get ~18 in suburb style driving and ~23 on highway but that maybe just me. |
| 2008 | 4dr Sedan 306-horsepower 3.5L V6 5-speed shiftable automatic AWD |
5th gear is short and really infringes on getting decent mileage (15-17 in mixed and 22-23 hwy). Accurate EPA figures but the new 7 speed AT for 2009 really helps. |
| 2007 | 4dr Sedan 306-horsepower 3.5L V6 5-speed shiftable automatic AWD |
Drinks way too much! |
| 2007 | 4dr Sedan 306-horsepower 3.5L V6 5-speed shiftable automatic AWD |
I do a lot of short trips - MPG are around 16-17. Could be better but I knew this going in. |
| 2007 | 4dr Sedan 306-horsepower 3.5L V6 5-speed shiftable automatic RWD |
Too low. |
| 2007 | 4dr Sedan 306-horsepower 3.5L V6 5-speed shiftable automatic RWD |
Fuel economy leaves much to be desired, but with proper management of acceleration, can be somewhat decent. |
| 2007 | 4dr Sedan 306-horsepower 3.5L V6 5-speed shiftable automatic AWD |
To high! |
| 2006 | 4dr Sedan 280-horsepower 3.5L V6 5-speed shiftable automatic AWD |
All wheel drive saps about 10% of fuel economy |
| 2006 | 4dr Sedan 280-horsepower 3.5L V6 5-speed shiftable automatic AWD |
An average of 20 mpg (mixed city driving) could be much better, especially with high gas prices |
| 2006 | 2dr Coupe 298-horsepower 3.5L V6 6-speed manual RWD |
gas mileage seems to average about 24 highway and 14 city |
| 2006 | 2dr Coupe 280-horsepower 3.5L V6 5-speed shiftable automatic RWD |
The fuel economy is somewhat disappointing. I averaged generally about 16mpg per tank when I lived and worked in a large city. Now that I live and commute to school out in the sticks, I amgetting around 23mpg with the cruise control locked at 55-60. |
| 2006 | 4dr Sedan 280-horsepower 3.5L V6 5-speed shiftable automatic AWD |
avg 19.5 mpg. Yeah I could do better if I never got on the gas, but then what would be the point of owning a G? |
| 2006 | 4dr Sedan 298-horsepower 3.5L V6 6-speed manual RWD |
Ive gotten as low as 13mpg, but I drive the car hard and I mean hard. |
| 2005 | 4dr Sedan 280-horsepower 3.5L V6 5-speed shiftable automatic RWD |
I only got 18 mpg while driving in mixed driving. The TL gets 22 day in and day out. |
| 2005 | 2dr Coupe 298-horsepower 3.5L V6 6-speed manual RWD |
only getting 17mpg |
| 2005 | 4dr Sedan 280-horsepower 3.5L V6 5-speed shiftable automatic AWD |
Terrible fuel economy. 75 liters gives me 480 to a tank. |
| 2005 | 2dr Coupe 298-horsepower 3.5L V6 6-speed manual RWD |
Isnt nice at the pump. Requires premium fuel. Price you pay for a sports car. |
| 2004 | 2dr Coupe 280-horsepower 3.5L V6 5-speed shiftable automatic RWD |
At the very best, my combined fuel economy never got above 20.4 MPG and is recenly under 19. |
| 2004 | 4dr Sedan 260-horsepower 3.5L V6 5-speed shiftable automatic RWD |
Currently get 25-27 highway and 21=22.5 in the city. Live in extremely mountainous terrain, so mpg would be higher in a flat area such as Nebraska or Kansas. I would have added a 6th gear and kept the power. |
| 2004 | 4dr Sedan 260-horsepower 3.5L V6 5-speed shiftable automatic AWD |
16-17 city/24-25 highway |
| 2004 | 4dr Sedan 260-horsepower 3.5L V6 6-speed manual RWD |
The G35 takes premium gas and from my research it looked like it would average about 10 mpg less than the Solara. |
| 2004 | 4dr Sedan 260-horsepower 3.5L V6 5-speed shiftable automatic AWD |
got between 14 and 17 mpg in the city |
| 2003 | 2dr Coupe 280-horsepower 3.5L V6 5-speed shiftable automatic RWD |
Freeway or city driving, AC or no AC, always average out to be around 20-21. No more no less. |
| 2003 | 4dr Sedan 260-horsepower 3.5L V6 5-speed shiftable automatic RWD |
Highway fuel economy should be better, maybe higher fifth gear for lower revs at highway speeds. |
| 2003 | 4dr Sedan 260-horsepower 3.5L V6 5-speed shiftable automatic RWD |
Very poor city mpg, almost as bad as large SUV. |
| 2003 | 4dr Sedan 260-horsepower 3.5L V6 5-speed shiftable automatic RWD |
City fuel economy is terrible. (15L/100km) Highway fuel economy is not as good either. (8L/100km @ 105km/hr) if going any faster, the fuel economy get worse! |
| 2003 | 2dr Coupe 280-horsepower 3.5L V6 6-speed manual RWD |
Horrible fuel milage. Seems like they under-rated the horsepower and over rated the fuel economy. |
