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Mercury Mountaineer vs. Cadillac STS MPG

Chart is based on 13 fuel economy reports for the Mercury Mountaineer and 28 fuel economy reports for the Cadillac STS.

Mercury Mountaineer MPG

Mercury Mountaineer Mercury Mountaineer 2007 21.0 MPG Highway Percentage 70 percent Mercury Mountaineer Mercury Mountaineer 2006 15.5 MPG Highway Percentage 10 percent Mercury Mountaineer Mercury Mountaineer 2006 17.8 MPG Highway Percentage 67 percent Mercury Mountaineer Mercury Mountaineer 2005 11.5 MPG Highway Percentage 5 percent Mercury Mountaineer Mercury Mountaineer 2004 18.6 MPG Highway Percentage 83 percent Mercury Mountaineer Mercury Mountaineer 2004 12.5 MPG Highway Percentage 10 percent Mercury Mountaineer Mercury Mountaineer 2002 16.7 MPG Highway Percentage 51 percent Mercury Mountaineer Mercury Mountaineer 2002 15.5 MPG Highway Percentage 20 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
2007 4dr SUV 210-horsepower 4.0L V6
5-speed automatic RWD		 flat light hvy 0 0 30 70 63 21.0  
2006 4dr SUV 292-horsepower 4.6L V8
6-speed automatic AWD		 flat med none 1 1 88 10 75 15.5  
2006 4dr SUV 210-horsepower 4.0L V6
5-speed automatic AWD		 flat med none 5 7 22 67 68 17.8  
2005 4dr SUV 239-horsepower 4.6L V8
5-speed automatic RWD		 flat light hvy 10 80 5 5 70 11.5  
2004 4dr SUV 239-horsepower 4.6L V8
5-speed automatic AWD		 flat v.lt none 0 7 10 83 60 18.6  
2004 4dr SUV 210-horsepower 4.0L V6
5-speed automatic AWD		 flat med none 40 30 20 10 60 12.5  
2002 4dr SUV 239-horsepower 4.6L V8
5-speed automatic AWD		 flat med hvy 21 16 13 51 75 16.7  
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2002 4dr SUV 210-horsepower 4.0L V6
5-speed automatic AWD		 flat light light 0 40 40 20 60 15.5  

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This page shows only averages. See all the Mercury Mountaineer fuel economy data.

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  
Looking for a warranty? Get a quote.
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.

Mercury Mountaineer vs. Cadillac STS 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 Mercury Mountaineer and Cadillac STS'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 Mercury models and Cadillac models.

What Our Members Are Saying about the Real Gas Mileage of the Mercury Mountaineer

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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