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Infiniti QX vs. Pontiac G8 Fuel Economy (L/100km)

Chart is based on 7 fuel economy reports for the Infiniti QX and 201 fuel economy reports for the Pontiac G8.

Infiniti QX L/100km

Infiniti QX Infiniti QX 2008 17.4 MPG Highway Percentage 44 percent Infiniti QX Infiniti QX 2006 13.5 MPG Highway Percentage 43 percent Infiniti QX Infiniti QX 2005 16.1 MPG Highway Percentage 48 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 L/100km
2008 4dr SUV 320-horsepower 5.6L V8
5-speed automatic 4WD w/low range		 flat med light 7 15 34 44 63 17.4  
2006 4dr SUV 315-horsepower 5.6L V8
5-speed automatic 4WD w/low range		 flat v.lt none 57 0 0 43 100 13.5  
2005 4dr SUV 315-horsepower 5.6L V8
5-speed automatic 4WD w/low range		 flat light light 15 33 3 48 97 16.1  

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This page shows only averages. See all the Infiniti QX fuel economy data.

Pontiac G8 L/100km

Pontiac G8 Pontiac G8 2009 13.1 MPG Highway Percentage 61 percent Pontiac G8 Pontiac G8 2009 13.0 MPG Highway Percentage 68 percent Pontiac G8 Pontiac G8 2009 11.4 MPG Highway Percentage 30 percent Pontiac G8 Pontiac G8 2008 12.9 MPG Highway Percentage 52 percent Pontiac G8 Pontiac G8 2008 12.5 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 L/100km
2009 4dr Sedan 415-horsepower 6.2L V8
6-speed manual RWD		 hills lead light 10 14 16 61 75 13.1  
2009 4dr Sedan 361-horsepower 6.0L V8
6-speed shiftable automatic RWD		 flat light light 3 21 9 68 63 13.0  
2009 4dr Sedan 256-horsepower 3.6L V6
5-speed shiftable automatic RWD		 flat med light 2 10 58 30 65 11.4  
2008 4dr Sedan 361-horsepower 6.0L V8
6-speed shiftable automatic RWD		 flat med none 10 21 16 52 75 12.9  
2008 4dr Sedan 256-horsepower 3.6L V6
5-speed shiftable automatic RWD		 flat med none 0 0 31 69 60 12.5  

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

Infiniti QX vs. Pontiac G8 Fuel Economy (L/100km)

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 QX and Pontiac G8's where a car was driven. So you can get an idea of their real-world L/100km based on how and where you drive a car.

See TrueDelta's information for all Infiniti models and Pontiac models.

What Our Members Are Saying about the Real Gas Mileage of the Infiniti QX

Infiniti QX Real Gas Mileage: Cons
YearBody/PowertrainComment
2008 4dr SUV 320-horsepower 5.6L V8
5-speed automatic 4WD w/low range		 It is what it is....we get 15 MPG on average (4wd). I can get 17 on the highway. see full Infiniti QX 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