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.
More about the
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 |
| 2009 | 4dr Sedan 328-horsepower 3.7L V6 7-speed shiftable automatic RWD |
flat | med | hvy | 20 | 40 | 0 | 40 | 75 | 21.3 |
| flat | med | none | 10 | 15 | 10 | 65 | 70 | 21.0 | ||
| flat | light | hvy | 0 | 75 | 0 | 25 | 65 | 22.1 | ||
| flat | med | none | 5 | 20 | 20 | 55 | 75 | 26.0 | ||
| flat | med | light | 10 | 10 | 15 | 65 | 60 | 25.8 | ||
| 2009 | 4dr Sedan 328-horsepower 3.7L V6 7-speed shiftable automatic RWD |
flat | med | light | 9 | 32 | 9 | 50 | 69 | 23.2 |
| Averages | flat | med | light | 9 | 32 | 9 | 50 | 69 | 23.2 | |
| With the 328-horsepower 3.7L V6 engine, 7-speed shiftable automatic transmission, and rear-wheel drive, 2009 Infiniti G fuel economy has been averaging
23.2 MPG (miles per gallon). The 2009 Infiniti Gs in this analysis were driven mostly on the highway at an average speed of 69 miles per hour (about 50 percent of the miles driven). The rest of the miles were in the city (32 percent), in heavy traffic (9 percent), and in the suburbs (9 percent). In addition the average 2009 Infiniti G in this analysis was driven on flat terrain with a medium foot and the AC on only some of the time. |
||||||||||
| 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 328-horsepower 3.7L V6 7-speed shiftable automatic AWD |
flat | med | light | 10 | 15 | 50 | 25 | 60 | 18.0 |
| flat | med | light | 10 | 15 | 50 | 25 | 60 | 17.5 | ||
| flat | light | none | 9 | 18 | 55 | 18 | 65 | 16.1 | ||
| mtns | light | none | 5 | 10 | 35 | 50 | 65 | 20.6 | ||
| flat | lead | hvy | 10 | 15 | 50 | 25 | 60 | 17.8 | ||
| 2009 | 4dr Sedan 328-horsepower 3.7L V6 7-speed shiftable automatic AWD |
flat | med | light | 9 | 15 | 48 | 29 | 62 | 18.0 |
| Averages | flat | med | light | 9 | 15 | 48 | 29 | 62 | 18.0 | |
| With the 328-horsepower 3.7L V6 engine, 7-speed shiftable automatic transmission, and all-wheel drive, the 2009 Infiniti G has been averaging
18.0 MPG (miles per gallon). The 2009 Infiniti Gs in this analysis were driven mostly in the suburbs (about 48 percent of the miles driven). The rest of the miles were on the highway at an average speed of 62 miles per hour (29 percent), in the city (15 percent), and in heavy traffic (9 percent). In addition the average 2009 Infiniti G in this analysis was driven on flat terrain with a medium foot and the AC on only some of the time. |
||||||||||
| 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 328-horsepower 3.7L V6 6-speed manual RWD |
flat | light | light | 0 | 9 | 0 | 91 | 70 | 24.5 |
| 2009 | 4dr Sedan 328-horsepower 3.7L V6 6-speed manual RWD |
flat | light | light | 0 | 9 | 0 | 91 | 70 | 24.5 |
| Averages | flat | light | light | 0 | 9 | 0 | 91 | 70 | 24.5 | |
| With the 328-horsepower 3.7L V6 engine, 6-speed manual transmission, and rear-wheel drive, 2009 Infiniti G gas mileage has been averaging
24.5 MPG (miles per gallon). The 2009 Infiniti Gs in this analysis were driven mostly on the highway at an average speed of 70 miles per hour (about 91 percent of the miles driven). The rest of the miles were in the city (9 percent), in heavy traffic (0 percent), and in the suburbs (0 percent). In addition the average 2009 Infiniti G in this analysis was driven on flat terrain with a light foot and the AC on only some of the time. |
||||||||||
| 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 | 2dr Hardtop conv. 325-horsepower 3.7L V6 7-speed shiftable automatic RWD |
flat | med | light | 0 | 50 | 0 | 50 | 75 | 21.9 |
| flat | lead | hvy | 25 | 25 | 25 | 25 | 75 | 20.0 | ||
| flat | lead | hvy | 25 | 25 | 25 | 25 | 75 | 20.0 | ||
| 2009 | 2dr Hardtop conv. 325-horsepower 3.7L V6 7-speed shiftable automatic RWD |
flat | lead | hvy | 17 | 33 | 17 | 33 | 75 | 20.6 |
| Averages | flat | lead | hvy | 17 | 33 | 17 | 33 | 75 | 20.6 | |
| With the 325-horsepower 3.7L V6 engine, 7-speed shiftable automatic transmission, and rear-wheel drive, 2009 Infiniti G fuel economy has been averaging
20.6 MPG (miles per gallon). The 2009 Infiniti Gs in this analysis were driven mostly in the city (about 33 percent of the miles driven). The rest of the miles were on the highway at an average speed of 75 miles per hour (33 percent), in heavy traffic (17 percent), and in the suburbs (17 percent). In addition the average 2009 Infiniti G in this analysis was driven on flat terrain with a lead foot and the AC on most or all of the time. |
||||||||||
| 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 | 2dr Hardtop conv. 325-horsepower 3.7L V6 6-speed manual RWD |
flat | lead | none | 10 | 10 | 70 | 10 | 70 | 15.0 |
| 2009 | 2dr Hardtop conv. 325-horsepower 3.7L V6 6-speed manual RWD |
flat | lead | none | 10 | 10 | 70 | 10 | 70 | 15.0 |
| Averages | flat | lead | none | 10 | 10 | 70 | 10 | 70 | 15.0 | |
| With the 325-horsepower 3.7L V6 engine, 6-speed manual transmission, and rear-wheel drive, the 2009 Infiniti G has been averaging
15.0 MPG (miles per gallon). The 2009 Infiniti Gs in this analysis were driven mostly in the suburbs (about 70 percent of the miles driven). The rest of the miles were in heavy traffic (10 percent), in the city (10 percent), and on the highway at an average speed of 70 miles per hour (10 percent). In addition the average 2009 Infiniti G in this analysis was driven on flat terrain with a lead foot and the AC not used at all. |
||||||||||
| 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 | 2dr Coupe 330-horsepower 3.7L V6 7-speed shiftable automatic RWD |
flat | med | none | 5 | 5 | 20 | 70 | 75 | 20.0 |
| flat | lead | hvy | 16 | 39 | 0 | 45 | 75 | 17.0 | ||
| flat | med | hvy | 16 | 39 | 0 | 45 | 75 | 17.6 | ||
| flat | med | none | 10 | 10 | 20 | 60 | 60 | 22.4 | ||
| flat | med | hvy | 10 | 60 | 15 | 15 | 60 | 18.0 | ||
| 2009 | 2dr Coupe 330-horsepower 3.7L V6 7-speed shiftable automatic RWD |
flat | med | light | 11 | 31 | 11 | 47 | 69 | 19.0 |
| Averages | flat | med | light | 11 | 31 | 11 | 47 | 69 | 19.0 | |
| With the 330-horsepower 3.7L V6 engine, 7-speed shiftable automatic transmission, and rear-wheel drive, 2009 Infiniti G gas mileage has been averaging
19.0 MPG (miles per gallon). The 2009 Infiniti Gs in this analysis were driven mostly on the highway at an average speed of 69 miles per hour (about 47 percent of the miles driven). The rest of the miles were in the city (31 percent), in heavy traffic (11 percent), and in the suburbs (11 percent). In addition the average 2009 Infiniti G in this analysis was driven on flat terrain with a medium foot and the AC on only some of the time. |
||||||||||
| 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 | 2dr Coupe 330-horsepower 3.7L V6 7-speed shiftable automatic AWD |
flat | light | light | 10 | 10 | 10 | 70 | 60 | 20.0 |
| flat | med | hvy | 10 | 10 | 10 | 70 | 60 | 21.7 | ||
| flat | light | light | 10 | 10 | 10 | 70 | 60 | 21.2 | ||
| flat | light | light | 10 | 10 | 10 | 70 | 60 | 19.6 | ||
| flat | med | hvy | 10 | 10 | 10 | 70 | 60 | 20.6 | ||
| 2009 | 2dr Coupe 330-horsepower 3.7L V6 7-speed shiftable automatic AWD |
flat | light | light | 10 | 10 | 10 | 70 | 60 | 20.6 |
| Averages | flat | light | light | 10 | 10 | 10 | 70 | 60 | 20.6 | |
| With the 330-horsepower 3.7L V6 engine, 7-speed shiftable automatic transmission, and all-wheel drive, 2009 Infiniti G fuel economy has been averaging
20.6 MPG (miles per gallon). The 2009 Infiniti Gs in this analysis were driven mostly on the highway at an average speed of 60 miles per hour (about 70 percent of the miles driven). The rest of the miles were in heavy traffic (10 percent), in the suburbs (10 percent), and in the city (10 percent). In addition the average 2009 Infiniti G in this analysis was driven on flat terrain with a light foot and the AC on only some of the time. |
||||||||||
| 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 | 2dr Coupe 330-horsepower 3.7L V6 6-speed manual RWD |
mtns | med | none | 0 | 30 | 0 | 70 | 75 | 21.0 |
| hills | light | none | 0 | 33 | 33 | 33 | 60 | 20.0 | ||
| 2009 | 2dr Coupe 330-horsepower 3.7L V6 6-speed manual RWD |
mtns | med | none | 0 | 32 | 17 | 52 | 68 | 20.5 |
| Averages | mtns | med | none | 0 | 32 | 17 | 52 | 68 | 20.5 | |
| With the 330-horsepower 3.7L V6 engine, 6-speed manual transmission, and rear-wheel drive, the 2009 Infiniti G has been averaging
20.5 MPG (miles per gallon). The 2009 Infiniti Gs in this analysis were driven mostly on the highway at an average speed of 68 miles per hour (about 52 percent of the miles driven). The rest of the miles were in the city (32 percent), in the suburbs (17 percent), and in heavy traffic (0 percent). In addition the average 2009 Infiniti G in this analysis was driven on mountainous terrain with a medium foot and the AC not used at all. |
||||||||||
If you are not a TrueDelta member, you can see only five Infiniti G MPG fuel economy averages for each powertrain. Log in or join us to see them all.
What Our Members Are Saying about the Real 2009 Infiniti G MPG
| 2009 Infiniti G Fuel Economy: Cons | ||
| Year | Body/Powertrain | Comment |
| 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. |
| 2009 | 2dr Coupe 330-horsepower 3.7L V6 7-speed shiftable automatic AWD |
average 18 in town 24 highway. |
| 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. |
