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Buick Rainier vs. Pontiac G8 MPG

Chart is based on 12 fuel economy reports for the Buick Rainier and 201 fuel economy reports for the Pontiac G8.

Buick Rainier MPG

Buick Rainier Buick Rainier 2006 21.6 MPG Highway Percentage 100 percent Buick Rainier Buick Rainier 2005 22.0 MPG Highway Percentage 100 percent Buick Rainier Buick Rainier 2005 16.6 MPG Highway Percentage 10 percent Buick Rainier Buick Rainier 2004 16.6 MPG Highway Percentage 31 percent Buick Rainier Buick Rainier 2004 16.1 MPG Highway Percentage 43 percent Buick Rainier Buick Rainier 2004 18.1 MPG Highway Percentage 50 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
2006 4dr SUV 291-horsepower 4.2L I6
4-speed automatic RWD		 flat med hvy 0 0 0 100 80 21.6  
2005 4dr SUV 300-horsepower 5.3L V8
4-speed automatic AWD		 flat light light 0 0 0 100 60 22.0  
2005 4dr SUV 275-horsepower 4.2L I6
4-speed automatic RWD		 hills v.lt hvy 2 73 15 10 75 16.6  
2004 4dr SUV 290-horsepower 5.3L V8
4-speed automatic AWD		 flat med none 13 23 33 31 63 16.6  
2004 4dr SUV 275-horsepower 4.2L I6
4-speed automatic RWD		 flat light light 11 3 43 43 63 16.1  
2004 4dr SUV 275-horsepower 4.2L I6
4-speed automatic AWD		 flat light none 1 10 39 50 60 18.1  

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This page shows only averages. See all the Buick Rainier 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.

Buick Rainier 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 Buick Rainier 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 SUVs
See TrueDelta's information for all Buick models and Pontiac models.

What Our Members Are Saying about the Real Gas Mileage of the Buick Rainier

Buick Rainier Real Gas Mileage: Cons
YearBody/PowertrainComment
2005 4dr SUV 300-horsepower 5.3L V8
4-speed automatic AWD		 12 mpg see full Buick Rainier review
2004 4dr SUV 290-horsepower 5.3L V8
4-speed automatic AWD		 An AWD V8 body on frame SUV/truck like the Rainier will be a gas pig. Mid to high teens are all you should expect. The benefit of poor gas mileage is strong towing performance. see full Buick Rainier 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