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Pontiac G8 Fuel Economy Data

4dr Sedan 256-hp 3.6L V6 5-sp shiftable automatic RWD

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 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
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flat med none 0 0 30 70 60 15.214
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 18.714
flat med none 0 0 30 70 60 20.492
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 21.876
flat med none 0 0 30 70 60 17.752
flat med none 0 0 30 70 60 18.729
flat med none 0 0 30 70 60 18.766
flat med none 0 0 30 70 60 20.900
flat med none 0 0 30 70 60 20.312
flat med none 0 0 30 70 60 16.088
flat med none 0 0 30 70 60 15.444
flat med none 0 0 30 70 60 20.508
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 14.309
flat med none 0 0 30 70 60 18.918
flat med none 0 0 30 70 60 20.240
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 21.063
flat med none 0 0 30 70 60 17.580
flat med none 0 0 30 70 60 15.028
flat med none 0 0 30 70 60 16.561
flat med none 0 0 30 70 60 22.617
flat med none 0 0 30 70 60 16.740
flat med none 0 0 30 70 60 18.522
flat med none 0 0 30 70 60 20.541
flat med none 0 0 30 70 60 20.787
flat med none 0 0 30 70 60 19.842
flat med light 1 15 70 14 80 24.000

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What Our Members Are Saying about the Real Gas Mileage of the 2008 Pontiac G8

2008 Pontiac G8 Real Gas Mileage: Cons
YearBody/PowertrainComment
2009 4dr Sedan 415-horsepower 6.2L V8
6-speed shiftable automatic RWD		 Low teens in town, and 24mpg tops on the highway make this a less than ideal economy car. see full Pontiac G8 review
2009 4dr Sedan 256-horsepower 3.6L V6
5-speed shiftable automatic RWD		 The most MPGs I ever had was 25 and that was all highway driving at about 70. see full Pontiac G8 review
2009 4dr Sedan 361-horsepower 6.0L V8
6-speed shiftable automatic RWD		 Not bad mileage figures given the size of the car and the beast of an engine, but this is not a car for the hybrid set. see full Pontiac G8 review
2009 4dr Sedan 361-horsepower 6.0L V8
6-speed shiftable automatic RWD		 Is very low in stop-and-go traffic. Gets better with time, I understand. see full Pontiac G8 review
2009 4dr Sedan 415-horsepower 6.2L V8
6-speed manual RWD		 Average fuel economy 15 mpg in mixed driving. see full Pontiac G8 review
2008 4dr Sedan 256-horsepower 3.6L V6
5-speed shiftable automatic RWD		 low 18 mpg city see full Pontiac G8 review
 

2008 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.