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Chevrolet Sonic vs. Pontiac G8 Fuel Economy (g/100m)

Chart is based on 123 fuel economy reports for the Chevrolet Sonic and 201 fuel economy reports for the Pontiac G8.

Chevrolet Sonic g/100m

Chevrolet Sonic Chevrolet Sonic 2018 3.2 MPG Highway Percentage 42 percent Chevrolet Sonic Chevrolet Sonic 2013 3.6 MPG Highway Percentage 43 percent Chevrolet Sonic Chevrolet Sonic 2013 2.8 MPG Highway Percentage 51 percent Chevrolet Sonic Chevrolet Sonic 2013 3.2 MPG Highway Percentage 20 percent Chevrolet Sonic Chevrolet Sonic 2012 2.7 MPG Highway Percentage 33 percent Chevrolet Sonic Chevrolet Sonic 2012 4.0 MPG Highway Percentage 61 percent Chevrolet Sonic Chevrolet Sonic 2012 2.7 MPG Highway Percentage 85 percent Chevrolet Sonic Chevrolet Sonic 2012 3.8 MPG Highway Percentage 15 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 g/100m
2018 4dr Hatch 138-horsepower 1.8L I4
6-speed shiftable automatic FWD		 flat v.lt none 0 35 23 42 60 3.2  
2013 4dr Sedan turbocharged 138hp 1.4L I4
6-speed manual FWD		 flat med light 25 30 3 43 70 3.6  
2013 4dr Sedan 138-horsepower 1.8L I4
6-speed shiftable automatic FWD		 flat light none 1 24 24 51 58 2.8  
2013 4dr Hatch turbocharged 138hp 1.4L I4
6-speed shiftable automatic FWD		 flat light hvy 0 64 16 20 51 3.2  
2012 4dr Sedan turbocharged 138hp 1.4L I4
6-speed manual FWD		 hills med none 3 10 53 33 68 2.7  
2012 4dr Sedan 138-horsepower 1.8L I4
6-speed shiftable automatic FWD		 flat light none 3 28 9 61 60 4.0  
2012 4dr Hatch turbocharged 138hp 1.4L I4
6-speed manual FWD		 flat v.lt none 1 4 10 85 65 2.7  
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2012 4dr Hatch 138-horsepower 1.8L I4
6-speed shiftable automatic FWD		 flat light light 0 52 32 15 70 3.8  

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This page shows only averages. See all the Chevrolet Sonic fuel economy data.

Pontiac G8 g/100m

Pontiac G8 Pontiac G8 2009 5.6 MPG Highway Percentage 61 percent Pontiac G8 Pontiac G8 2009 5.8 MPG Highway Percentage 68 percent Pontiac G8 Pontiac G8 2009 4.9 MPG Highway Percentage 30 percent Pontiac G8 Pontiac G8 2008 6.3 MPG Highway Percentage 52 percent Pontiac G8 Pontiac G8 2008 5.3 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 g/100m
2009 4dr Sedan 415-horsepower 6.2L V8
6-speed manual RWD		 hills lead light 10 14 16 61 75 5.6  
2009 4dr Sedan 361-horsepower 6.0L V8
6-speed shiftable automatic RWD		 flat light light 3 21 9 68 63 5.8  
2009 4dr Sedan 256-horsepower 3.6L V6
5-speed shiftable automatic RWD		 flat med light 2 10 58 30 65 4.9  
2008 4dr Sedan 361-horsepower 6.0L V8
6-speed shiftable automatic RWD		 flat med none 10 21 16 52 75 6.3  
2008 4dr Sedan 256-horsepower 3.6L V6
5-speed shiftable automatic RWD		 flat med none 0 0 31 69 60 5.3  

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

Chevrolet Sonic vs. Pontiac G8 Fuel Economy (g/100m)

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

See TrueDelta's information for all Sedans and Hatchbacks.
See TrueDelta's information for all Chevrolet models and Pontiac models.

What Our Members Are Saying about the Real Gas Mileage of the Chevrolet Sonic

Chevrolet Sonic Real Gas Mileage: Pros
YearBody/PowertrainComment
2013 4dr Sedan turbocharged 138hp 1.4L I4
6-speed manual FWD		 The fuel economy is excellent on this car as long as you are not on the pedal too heavy. Freeway (70-75 mph) mileage is around 40 to 42 mpg. Rural highway (55-62 mph) 42-46 mpg. The worst mpg i have every experienced is 36.5. This was mostly in town with the AC on. see full Chevrolet Sonic review
2012 4dr Sedan turbocharged 138hp 1.4L I4
6-speed manual FWD		 Have never got below 37.7 miles to the gallon. I do drive conservatively but even when my husband who drives significantly more aggressive the gas mileage has been excellent see full Chevrolet Sonic review
2012 4dr Sedan 138-horsepower 1.8L I4
6-speed shiftable automatic FWD		 I had a Choice between My Current Car, a Kia Rio , a Ford Focus and Mazda 3. Between ALL these only the Sonic was a Certified Pre-Owned Vheicle and the others were not. The Fuel economy was ALMOST the Same..but i thought the Sonic had faired A Tad bit better. see full Chevrolet Sonic 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