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 415-horsepower 6.2L V8 6-speed manual RWD |
flat | lead | none | 0 | 5 | 5 | 90 | 80 | 17.000 | |
hills | lead | light | 19 | 23 | 26 | 32 | 70 | 20.000 | |||
2009 | 4dr Sedan 415-horsepower 6.2L V8 6-speed manual RWD |
hills | lead | light | 10 | 14 | 16 | 61 | 75 | 18.5 | |
Averages | hills | lead | light | 10 | 14 | 16 | 61 | 75 | 18.5 | ||
With the 415-horsepower 6.2L V8 engine, 6-speed manual transmission, and rear-wheel drive, 2009 Pontiac G8 fuel economy has been averaging
18.5 MPG (miles per gallon). The 2009 Pontiac G8s in this analysis were driven mostly on the highway at an average speed of 75 miles per hour (about 61 percent of the miles driven). The rest of the miles were in the suburbs (16 percent), in the city (14 percent), and in heavy traffic (10 percent). In addition the average 2009 Pontiac G8 in this analysis was driven on hilly terrain with a lead 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 361-horsepower 6.0L V8 6-speed shiftable automatic RWD |
flat | light | light | 0 | 20 | 0 | 80 | 60 | 13.889 | |
flat | light | light | 0 | 20 | 0 | 80 | 60 | 17.566 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 14.261 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 19.486 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 14.029 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 16.014 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 18.617 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 19.630 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 16.231 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 21.035 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 15.420 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 19.700 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 17.379 | |||
flat | med | light | 0 | 20 | 0 | 80 | 60 | 19.291 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 18.023 | |||
flat | med | light | 0 | 20 | 0 | 80 | 60 | 20.333 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 18.027 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 17.257 | |||
flat | med | light | 0 | 50 | 0 | 50 | 60 | 18.298 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 16.108 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 14.400 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 16.396 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 16.311 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 17.357 | |||
flat | med | light | 0 | 50 | 0 | 50 | 60 | 18.922 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 17.408 | |||
flat | med | light | 0 | 50 | 0 | 50 | 60 | 18.922 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 17.067 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 20.000 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 15.231 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 15.388 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 20.000 | |||
flat | med | light | 0 | 20 | 0 | 80 | 60 | 19.000 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 19.000 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 17.620 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 17.353 | |||
flat | med | light | 0 | 20 | 0 | 80 | 60 | 16.842 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 19.851 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 18.246 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 23.607 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 19.286 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 19.243 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 19.215 | |||
flat | lead | light | 10 | 20 | 35 | 35 | 65 | 24.000 | |||
flat | med | hvy | 35 | 15 | 20 | 30 | 70 | 19.000 | |||
flat | lead | light | 10 | 20 | 20 | 50 | 70 | 26.000 | |||
hills | light | light | 5 | 5 | 5 | 85 | 70 | 31.000 | |||
flat | med | hvy | 60 | 10 | 10 | 20 | 70 | 18.000 | |||
flat | med | light | 10 | 60 | 5 | 25 | 70 | 19.000 | |||
hills | med | light | 0 | 5 | 5 | 90 | 70 | 25.300 | |||
flat | light | none | 20 | 21 | 23 | 36 | 60 | 14.000 | |||
flat | light | none | 20 | 21 | 23 | 36 | 60 | 14.000 | |||
flat | med | none | 40 | 10 | 10 | 40 | 65 | 16.500 | |||
flat | med | none | 10 | 10 | 20 | 60 | 60 | 19.200 | |||
flat | light | light | 0 | 5 | 0 | 95 | 60 | 29.000 | |||
flat | med | light | 0 | 20 | 0 | 80 | 60 | 23.000 | |||
flat | med | light | 0 | 50 | 0 | 50 | 70 | 19.200 | |||
flat | med | light | 0 | 50 | 0 | 50 | 70 | 22.200 | |||
flat | lead | light | 0 | 0 | 0 | 100 | 85 | 22.000 | |||
flat | med | hvy | 5 | 0 | 20 | 75 | 75 | 18.900 | |||
flat | lead | none | 0 | 50 | 50 | 0 | N/A | 14.000 | |||
flat | med | none | 0 | 0 | 0 | 100 | 80 | 24.500 | |||
flat | med | none | 6 | 0 | 39 | 56 | 60 | 19.100 | |||
hills | lead | none | 0 | 35 | 15 | 50 | 70 | 15.200 | |||
hills | lead | none | 0 | 40 | 40 | 20 | 75 | 20.400 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 17.391 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 19.921 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 16.928 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 19.367 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 18.042 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 18.942 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 14.213 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 19.023 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 17.869 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 17.719 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 14.019 | |||
flat | med | none | 0 | 0 | 100 | 0 | N/A | 14.500 | |||
flat | med | none | 0 | 0 | 100 | 0 | N/A | 16.900 | |||
hills | med | none | 10 | 25 | 45 | 20 | 70 | 16.300 | |||
flat | med | light | 30 | 30 | 30 | 10 | 70 | 15.400 | |||
flat | med | light | 30 | 30 | 30 | 10 | 70 | 15.400 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 21.043 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 18.143 | |||
flat | light | light | 0 | 5 | 25 | 70 | 55 | 22.606 | |||
flat | med | light | 0 | 20 | 0 | 80 | 60 | 19.048 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 19.096 | |||
flat | lead | hvy | 15 | 30 | 30 | 25 | 75 | 18.500 | |||
flat | light | light | 22 | 21 | 23 | 35 | 74 | 22.200 | |||
flat | light | light | 22 | 21 | 23 | 35 | 74 | 22.000 | |||
flat | med | light | 10 | 20 | 50 | 20 | 60 | 17.300 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 10.833 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 19.138 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 16.080 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 19.222 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 17.325 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 14.220 | |||
flat | med | light | 10 | 20 | 50 | 20 | 60 | 17.800 | |||
flat | med | light | 1 | 58 | 21 | 20 | 80 | 24.200 | |||
flat | med | hvy | 0 | 15 | 15 | 70 | 65 | 22.100 | |||
flat | med | hvy | 0 | 15 | 15 | 70 | 65 | 22.100 | |||
hills | light | light | 0 | 10 | 30 | 60 | 70 | 19.200 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 17.547 | |||
flat | light | light | 0 | 0 | 0 | 100 | 60 | 26.000 | |||
flat | lead | light | 2 | 5 | 88 | 5 | 80 | 14.800 | |||
flat | med | light | 0 | 0 | 0 | 100 | 80 | 20.000 | |||
flat | med | none | 0 | 50 | 0 | 50 | 80 | 16.300 | |||
flat | med | light | 11 | 5 | 21 | 63 | 60 | 20.500 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 19.727 | |||
flat | med | none | 0 | 5 | 80 | 15 | 60 | 18.000 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 16.083 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 20.630 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 17.857 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 19.440 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 17.436 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 17.097 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 15.455 | |||
flat | med | light | 0 | 50 | 0 | 50 | 60 | 16.713 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 19.091 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 19.755 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 18.874 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 18.480 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 23.226 | |||
flat | med | light | 0 | 20 | 0 | 80 | 60 | 22.875 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 17.700 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 21.707 | |||
flat | med | light | 0 | 20 | 0 | 80 | 60 | 20.860 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 18.524 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 17.355 | |||
flat | light | light | 0 | 20 | 0 | 80 | 60 | 18.933 | |||
flat | med | light | 0 | 50 | 0 | 50 | 60 | 15.938 | |||
2009 | 4dr Sedan 361-horsepower 6.0L V8 6-speed shiftable automatic RWD |
flat | light | light | 3 | 21 | 9 | 68 | 63 | 18.6 | |
Averages | flat | light | light | 3 | 21 | 9 | 68 | 63 | 18.6 | ||
With the 361-horsepower 6.0L V8 engine, 6-speed shiftable automatic transmission, and rear-wheel drive, the 2009 Pontiac G8 has been averaging
18.6 MPG (miles per gallon). The 2009 Pontiac G8s in this analysis were driven mostly on the highway at an average speed of 63 miles per hour (about 68 percent of the miles driven). The rest of the miles were in the city (21 percent), in the suburbs (9 percent), and in heavy traffic (3 percent). In addition the average 2009 Pontiac G8 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 | |
2009 | 4dr Sedan 256-horsepower 3.6L V6 5-speed shiftable automatic RWD |
flat | med | hvy | 5 | 11 | 84 | 0 | N/A | 24.500 | |
flat | med | hvy | 0 | 20 | 20 | 60 | 70 | 21.000 | |||
flat | med | none | 0 | 0 | 70 | 30 | 60 | 17.400 | |||
2009 | 4dr Sedan 256-horsepower 3.6L V6 5-speed shiftable automatic RWD |
flat | med | light | 2 | 10 | 58 | 30 | 65 | 21.0 | |
Averages | flat | med | light | 2 | 10 | 58 | 30 | 65 | 21.0 | ||
With the 256-horsepower 3.6L V6 engine, 5-speed shiftable automatic transmission, and rear-wheel drive, 2009 Pontiac G8 gas mileage has been averaging
21.0 MPG (miles per gallon). The 2009 Pontiac G8s in this analysis were driven mostly in the suburbs (about 58 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 the city (10 percent), and in heavy traffic (2 percent). In addition the average 2009 Pontiac G8 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 361-horsepower 6.0L V8 6-speed shiftable automatic RWD |
hills | med | light | 10 | 10 | 10 | 70 | 70 | 20.000 | |
hills | lead | light | 5 | 16 | 63 | 16 | 75 | 16.400 | |||
hills | med | light | 10 | 10 | 10 | 70 | 70 | 20.800 | |||
flat | med | hvy | 25 | 25 | 25 | 25 | 80 | 18.900 | |||
hills | med | light | 10 | 10 | 10 | 70 | 70 | 21.000 | |||
hills | med | light | 10 | 10 | 10 | 70 | 70 | 22.000 | |||
flat | med | none | 30 | 30 | 0 | 40 | 70 | 18.900 | |||
hills | med | light | 10 | 10 | 10 | 70 | 70 | 20.500 | |||
flat | med | light | 5 | 60 | 10 | 25 | 75 | 14.500 | |||
flat | lead | none | 0 | 0 | 100 | 0 | N/A | 17.900 | |||
flat | med | light | 10 | 20 | 20 | 50 | 74 | 21.800 | |||
hills | med | light | 4 | 17 | 17 | 63 | 70 | 19.500 | |||
flat | med | hvy | 5 | 5 | 80 | 10 | 60 | 18.100 | |||
flat | lead | none | 10 | 25 | 0 | 65 | 75 | 17.650 | |||
flat | lead | none | 10 | 25 | 0 | 65 | 80 | 18.081 | |||
flat | lead | none | 10 | 25 | 0 | 65 | 80 | 19.253 | |||
flat | med | none | 10 | 15 | 0 | 75 | 75 | 18.500 | |||
flat | med | none | 5 | 37 | 32 | 26 | 60 | 17.813 | |||
flat | med | none | 10 | 30 | 0 | 60 | 75 | 16.000 | |||
flat | med | none | 10 | 20 | 0 | 70 | 75 | 16.561 | |||
flat | med | none | 10 | 20 | 0 | 70 | 75 | 18.165 | |||
flat | lead | none | 20 | 30 | 0 | 50 | 75 | 16.464 | |||
flat | med | none | 10 | 25 | 0 | 65 | 75 | 17.989 | |||
flat | med | none | 10 | 30 | 10 | 50 | 75 | 17.300 | |||
flat | lead | none | 10 | 25 | 0 | 65 | 75 | 18.436 | |||
2008 | 4dr Sedan 361-horsepower 6.0L V8 6-speed shiftable automatic RWD |
flat | med | none | 10 | 21 | 16 | 52 | 73 | 18.5 | |
Averages | flat | med | none | 10 | 21 | 16 | 52 | 73 | 18.5 | ||
With the 361-horsepower 6.0L V8 engine, 6-speed shiftable automatic transmission, and rear-wheel drive, 2008 Pontiac G8 fuel economy has been averaging
18.5 MPG (miles per gallon). The 2008 Pontiac G8s in this analysis were driven mostly on the highway at an average speed of 73 miles per hour (about 52 percent of the miles driven). The rest of the miles were in the city (21 percent), in the suburbs (16 percent), and in heavy traffic (10 percent). In addition the average 2008 Pontiac G8 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 | |
2008 | 4dr Sedan 256-horsepower 3.6L V6 5-speed shiftable automatic RWD |
flat | med | none | 0 | 0 | 30 | 70 | 60 | 19.468 | |
flat | med | none | 0 | 0 | 30 | 70 | 60 | 17.000 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 20.240 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 18.918 | |||
flat | med | light | 1 | 15 | 70 | 14 | 80 | 24.000 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 24.146 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 20.308 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 20.579 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 19.596 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 17.500 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 18.355 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 20.287 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 19.867 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 24.821 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 19.563 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 13.333 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 18.729 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 21.876 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 20.492 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 17.752 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 18.766 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 18.714 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 20.900 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 15.214 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 16.088 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 21.063 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 17.580 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 20.541 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 17.386 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 20.723 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 20.508 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 15.444 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 20.787 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 19.842 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 16.561 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 20.312 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 22.617 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 15.028 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 18.522 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 16.740 | |||
flat | med | none | 0 | 0 | 30 | 70 | 60 | 14.309 | |||
2008 | 4dr Sedan 256-horsepower 3.6L V6 5-speed shiftable automatic RWD |
flat | med | none | 0 | 0 | 31 | 69 | 60 | 19.1 | |
Averages | flat | med | none | 0 | 0 | 31 | 69 | 60 | 19.1 | ||
With the 256-horsepower 3.6L V6 engine, 5-speed shiftable automatic transmission, and rear-wheel drive, the 2008 Pontiac G8 has been averaging
19.1 MPG (miles per gallon). The 2008 Pontiac G8s in this analysis were driven mostly on the highway at an average speed of 60 miles per hour (about 69 percent of the miles driven). The rest of the miles were in the suburbs (31 percent), in heavy traffic (0 percent), and in the city (0 percent). In addition the average 2008 Pontiac G8 in this analysis was driven on flat terrain with a medium foot and the AC not used at all. |
What Our Members Are Saying about the Real Gas Mileage of the 2008 Pontiac G8
6-speed shiftable automatic RWD
5-speed shiftable automatic RWD
6-speed shiftable automatic RWD
6-speed shiftable automatic RWD
6-speed manual RWD
5-speed shiftable automatic RWD
Pontiac G8 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 Pontiac G8's real-world MPG based on how and where you drive a car.