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Cadillac STS vs. Pontiac Grand Am MPG

Chart is based on 28 fuel economy reports for the Cadillac STS and 10 fuel economy reports for the Pontiac Grand Am.

Cadillac STS MPG

Cadillac STS Cadillac STS 2008 20.1 MPG Highway Percentage 90 percent Cadillac STS Cadillac STS 2008 21.8 MPG Highway Percentage 50 percent Cadillac STS Cadillac STS 2007 22.0 MPG Highway Percentage 28 percent Cadillac STS Cadillac STS 2006 24.5 MPG Highway Percentage 100 percent Cadillac STS Cadillac STS 2006 20.0 MPG Highway Percentage 60 percent Cadillac STS Cadillac STS 2006 19.0 MPG Highway Percentage 20 percent Cadillac STS Cadillac STS 2005 20.5 MPG Highway Percentage 53 percent Cadillac STS Cadillac STS 2005 14.6 MPG Highway Percentage 40 percent Cadillac STS Cadillac STS 2005 21.0 MPG Highway Percentage 45 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
2008 4dr Sedan 320-horsepower 4.6L V8
6-speed shiftable automatic AWD		 flat v.lt light 0 10 0 90 60 20.1  
2008 4dr Sedan 302-horsepower 3.6L V6
6-speed shiftable automatic RWD		 flat med light 9 11 30 50 73 21.8  
2007 4dr Sedan 320-horsepower 4.6L V8
6-speed shiftable automatic RWD		 flat med light 3 50 20 28 70 22.0  
2006 4dr Sedan 320-horsepower 4.6L V8
5-speed shiftable automatic RWD		 mtns light none 0 0 0 100 65 24.5  
2006 4dr Sedan 254-horsepower 3.6L V6
5-speed shiftable automatic RWD		 flat med light 20 9 10 60 67 20.0  
2006 4dr Sedan 254-horsepower 3.6L V6
5-speed shiftable automatic AWD		 flat light none 0 45 35 20 60 19.0  
2005 4dr Sedan 320-horsepower 4.6L V8
5-speed shiftable automatic RWD		 flat med light 0 3 43 53 67 20.5  
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2005 4dr Sedan 320-horsepower 4.6L V8
5-speed shiftable automatic AWD		 flat med light 10 45 5 40 70 14.6  
2005 4dr Sedan 255-horsepower 3.6L V6
5-speed shiftable automatic RWD		 flat light light 5 20 30 45 60 21.0  

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This page shows only averages. See all the Cadillac STS fuel economy data.

Pontiac Grand Am MPG

Pontiac Grand Am Pontiac Grand Am 2004 28.0 MPG Highway Percentage 65 percent Pontiac Grand Am Pontiac Grand Am 2003 19.0 MPG Highway Percentage 5 percent Pontiac Grand Am Pontiac Grand Am 2003 28.0 MPG Highway Percentage 70 percent Pontiac Grand Am Pontiac Grand Am 2003 28.6 MPG Highway Percentage 67 percent Pontiac Grand Am Pontiac Grand Am 2003 24.8 MPG Highway Percentage 50 percent Pontiac Grand Am Pontiac Grand Am 2002 27.9 MPG Highway Percentage 50 percent Pontiac Grand Am Pontiac Grand Am 2001 28.0 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
2004 4dr Sedan 170-horsepower 3.4L V6
4-speed automatic FWD		 flat light hvy 25 10 1 65 70 28.0  
2003 4dr Sedan 175-horsepower 3.4L V6
4-speed automatic FWD		 flat med none 0 10 85 5 70 19.0  
2003 4dr Sedan 170-horsepower 3.4L V6
4-speed automatic FWD		 flat light none 15 15 0 70 60 28.0  
2003 4dr Sedan 140-horsepower 2.2L I4
5-speed manual FWD		 hills light none 4 18 11 67 107 28.6  
2003 4dr Sedan 140-horsepower 2.2L I4
4-speed automatic FWD		 flat med light 15 13 23 50 73 24.8  
2002 4dr Sedan 140-horsepower 2.2L I4
4-speed automatic FWD		 hills light hvy 10 30 10 50 70 27.9  
2001 2dr Coupe 175-horsepower 3.4L V6
4-speed automatic FWD		 flat light light 5 5 40 50 60 28.0  

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

Cadillac STS vs. Pontiac Grand Am 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 Cadillac STS and Pontiac Grand Am'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.

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

What Our Members Are Saying about the Real Gas Mileage of the Cadillac STS

Cadillac STS Real Gas Mileage: Cons
YearBody/PowertrainComment
2006 4dr Sedan 320-horsepower 4.6L V8
5-speed shiftable automatic RWD		 16 city/21 highway. Buy it only if you can afford it with out complaining. see full Cadillac STS review
2005 4dr Sedan 320-horsepower 4.6L V8
5-speed shiftable automatic AWD		 This car is thirsty. I live in flat country and I get 15 mpg with 80% highway traffic. I only get 19 mpg on trips. It probably needs a 6th speed overdive for the highway. see full Cadillac STS review
 

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

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