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Pontiac G6 vs. Pontiac G8 MPG

Chart is based on 46 fuel economy reports for the Pontiac G6 and 201 fuel economy reports for the Pontiac G8.

Pontiac G6 MPG

Pontiac G6 Pontiac G6 2009 24.0 MPG Highway Percentage 68 percent Pontiac G6 Pontiac G6 2008 23.4 MPG Highway Percentage 21 percent Pontiac G6 Pontiac G6 2008 26.1 MPG Highway Percentage 62 percent Pontiac G6 Pontiac G6 2008 18.0 MPG Highway Percentage 15 percent Pontiac G6 Pontiac G6 2007 26.0 MPG Highway Percentage 40 percent Pontiac G6 Pontiac G6 2007 22.8 MPG Highway Percentage 53 percent Pontiac G6 Pontiac G6 2007 23.0 MPG Highway Percentage 95 percent Pontiac G6 Pontiac G6 2007 24.5 MPG Highway Percentage 71 percent Pontiac G6 Pontiac G6 2007 20.0 MPG Highway Percentage 37 percent Pontiac G6 Pontiac G6 2006 19.9 MPG Highway Percentage 36 percent Pontiac G6 Pontiac G6 2006 24.1 MPG Highway Percentage 47 percent Pontiac G6 Pontiac G6 2006 31.7 MPG Highway Percentage 55 percent Pontiac G6 Pontiac G6 2006 30.2 MPG Highway Percentage 59 percent Pontiac G6 Pontiac G6 2006 17.8 MPG Highway Percentage 10 percent Pontiac G6 Pontiac G6 2006 22.4 MPG Highway Percentage 21 percent Pontiac G6 Pontiac G6 2006 20.0 MPG Highway Percentage 41 percent Pontiac G6 Pontiac G6 2006 31.4 MPG Highway Percentage 58 percent Pontiac G6 Pontiac G6 2005 26.3 MPG Highway Percentage 70 percent
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 219-horsepower 3.5L V6
4-speed shiftable automatic FWD		 flat med light 0 32 0 68 70 24.0  
2008 4dr Sedan 219-horsepower 3.5L V6
4-speed automatic FWD		 flat med light 23 24 32 21 80 23.4  
2008 4dr Sedan 164-horsepower 2.4L I4
4-speed automatic FWD		 flat med light 2 23 13 62 78 26.1  
2008 2dr Coupe 219-horsepower 3.5L V6
4-speed shiftable automatic FWD		 flat med light 15 35 35 15 60 18.0  
2007 4dr Sedan 252-horsepower 3.6L V6
6-speed shiftable automatic FWD		 flat light light 10 25 25 40 55 26.0  
2007 4dr Sedan 224-horsepower 3.5L V6
4-speed shiftable automatic FWD		 flat light light 13 18 18 53 68 22.8  
2007 4dr Sedan 224-horsepower 3.5L V6
4-speed automatic FWD		 flat med none 0 2 4 95 73 23.0  
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2007 2dr Hardtop conv. 217-horsepower 3.5L V6
4-speed shiftable automatic FWD		 flat light light 6 13 9 71 62 24.5  
2007 2dr Coupe 224-horsepower 3.5L V6
4-speed shiftable automatic FWD		 flat med light 19 15 29 37 69 20.0  
2006 4dr Sedan 240-horsepower 3.9L V6
4-speed shiftable automatic FWD		 flat med none 5 3 56 36 66 19.9  
2006 4dr Sedan 201-horsepower 3.5L V6
4-speed shiftable automatic FWD		 flat med light 18 15 20 47 95 24.1  
2006 4dr Sedan 201-horsepower 3.5L V6
4-speed automatic FWD		 flat light light 16 19 9 55 67 31.7  
2006 4dr Sedan 167-horsepower 2.4L I4
4-speed automatic FWD		 hills med none 32 0 9 59 68 30.2  
2006 2dr Hardtop conv. 227-horsepower 3.9L V6
4-speed shiftable automatic FWD		 flat light none 0 60 30 10 75 17.8  
2006 2dr Coupe 240-horsepower 3.9L V6
6-speed manual FWD		 flat med light 18 36 25 21 85 22.4  
2006 2dr Coupe 240-horsepower 3.9L V6
4-speed shiftable automatic FWD		 flat med light 3 27 30 41 70 20.0  
2006 2dr Coupe 201-horsepower 3.5L V6
4-speed shiftable automatic FWD		 flat light none 2 10 30 58 100 31.4  
2005 4dr Sedan 200-horsepower 3.5L V6
4-speed shiftable automatic FWD		 flat med light 3 3 25 70 100 26.3  

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This page shows only averages. See all the Pontiac G6 fuel economy data.

Pontiac G8 MPG

Pontiac G8 Pontiac G8 2009 18.0 MPG Highway Percentage 61 percent Pontiac G8 Pontiac G8 2009 18.6 MPG Highway Percentage 68 percent Pontiac G8 Pontiac G8 2009 21.0 MPG Highway Percentage 30 percent Pontiac G8 Pontiac G8 2008 18.5 MPG Highway Percentage 52 percent Pontiac G8 Pontiac G8 2008 19.1 MPG Highway Percentage 69 percent
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		 hills lead light 10 14 16 61 75 18.0  
2009 4dr Sedan 361-horsepower 6.0L V8
6-speed shiftable automatic RWD		 flat light light 3 21 9 68 63 18.6  
2009 4dr Sedan 256-horsepower 3.6L V6
5-speed shiftable automatic RWD		 flat med light 2 10 58 30 65 21.0  
2008 4dr Sedan 361-horsepower 6.0L V8
6-speed shiftable automatic RWD		 flat med none 10 21 16 52 75 18.5  
2008 4dr Sedan 256-horsepower 3.6L V6
5-speed shiftable automatic RWD		 flat med none 0 0 31 69 60 19.1  

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This page shows only averages. See all the Pontiac G8 fuel economy data.

Pontiac G6 vs. Pontiac G8 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 G6 and Pontiac G8's where a car was driven. So you can get an idea of their real-world MPG based on how and where you drive a car.

See TrueDelta's information for all Sedans, Coupes, and Convertibles.
See TrueDelta's information for all Pontiac models.

What Our Members Are Saying about the Real Gas Mileage of the Pontiac G6

Pontiac G6 Real Gas Mileage: Pros
YearBody/PowertrainComment
2009 4dr Sedan 164-horsepower 2.4L I4
6-speed shiftable automatic FWD		 I opted to get the 4 cylinder 6 speed automatic because of the higher EPA rating and I have a fairly long commute to and from work. see full Pontiac G6 review
2007 4dr Sedan 169-horsepower 2.4L I4
4-speed automatic FWD		 Getting 25 city miles see full Pontiac G6 review
2007 2dr Coupe 224-horsepower 3.5L V6
4-speed shiftable automatic FWD		 Amazingly it gets 30+ on the highway. I usually drive in stop-and-go traffic but still get 20 mpg easily. see full Pontiac G6 review
2006 4dr Sedan 201-horsepower 3.5L V6
4-speed automatic FWD		 Even with a 6 cylinder, and my overzealous driving, I regularly got 28-29 MPG. This is a mix of highway and city driving in a very hilly area. see full Pontiac G6 review
Pontiac G6 Real Gas Mileage: Cons
YearBody/PowertrainComment
2008 4dr Sedan 219-horsepower 3.5L V6
4-speed automatic FWD		 The V6 I drove had MPG ratings slightly worse than the 4-cyl models I was looking at. see full Pontiac G6 review
2007 2dr Hardtop conv. 217-horsepower 3.5L V6
4-speed shiftable automatic FWD		 Not good enough. see full Pontiac G6 review
 

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

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