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Mercury Mountaineer vs. Mercury Grand Marquis MPG

Chart is based on 13 fuel economy reports for the Mercury Mountaineer and 67 fuel economy reports for the Mercury Grand Marquis.

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  
Looking for a warranty? Get a quote.
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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Mercury Grand Marquis MPG

Mercury Grand Marquis Mercury Grand Marquis 2010 25.3 MPG Highway Percentage 90 percent Mercury Grand Marquis Mercury Grand Marquis 2009 19.0 MPG Highway Percentage 75 percent Mercury Grand Marquis Mercury Grand Marquis 2005 23.8 MPG Highway Percentage 75 percent Mercury Grand Marquis Mercury Grand Marquis 2004 25.7 MPG Highway Percentage 92 percent Mercury Grand Marquis Mercury Grand Marquis 2004 23.4 MPG Highway Percentage 30 percent Mercury Grand Marquis Mercury Grand Marquis 2003 21.8 MPG Highway Percentage 87 percent Mercury Grand Marquis Mercury Grand Marquis 2003 18.5 MPG Highway Percentage 40 percent Mercury Grand Marquis Mercury Grand Marquis 2002 22.0 MPG Highway Percentage 31 percent Mercury Grand Marquis Mercury Grand Marquis 2002 20.3 MPG Highway Percentage 10 percent Mercury Grand Marquis Mercury Grand Marquis 2000 21.8 MPG Highway Percentage 50 percent Mercury Grand Marquis Mercury Grand Marquis 2000 21.9 MPG Highway Percentage 55 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
2010 4dr Sedan 224-horsepower 4.6L V8
4-speed automatic RWD
flat med light 0 0 10 90 70 25.3  
2009 4dr Sedan 224-horsepower 4.6L V8
4-speed automatic RWD
flat med hvy 5 5 15 75 70 19.0  
2005 4dr Sedan 239-horsepower 4.6L V8
4-speed automatic RWD
flat med none 5 5 15 75 60 23.8  
2004 4dr Sedan 239-horsepower 4.6L V8
4-speed automatic RWD
flat med none 1 3 3 92 73 25.7  
2004 4dr Sedan 224-horsepower 4.6L V8
4-speed automatic RWD
flat med light 5 5 60 30 70 23.4  
2003 4dr Sedan 239-horsepower 4.6L V8
4-speed automatic RWD
flat med hvy 0 1 12 87 75 21.8  
2003 4dr Sedan 224-horsepower 4.6L V8
4-speed automatic RWD
flat light light 15 26 19 40 68 18.5  
Looking for a warranty? Get a quote.
2002 4dr Sedan 235-horsepower 4.6L V8
4-speed automatic RWD
flat light light 22 23 23 31 60 22.0  
2002 4dr Sedan 220-horsepower 4.6L V8
4-speed automatic RWD
flat light hvy 5 25 60 10 60 20.3  
2000 4dr Sedan 215-horsepower 4.6L V8
4-speed automatic RWD
flat med hvy 0 0 50 50 70 21.8  
2000 4dr Sedan 200-horsepower 4.6L V8
4-speed automatic RWD
flat light none 1 4 40 55 61 21.9  

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Mercury Mountaineer vs. Mercury Grand Marquis 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 Mercury Grand Marquis'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.

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 Mercury Grand Marquis

Mercury Grand Marquis Real Gas Mileage: Pros
YearBody/PowertrainComment
2008 4dr Sedan 224-horsepower 4.6L V8
4-speed automatic RWD
Incredible- 21mpg city, 27mpg HWY see full Mercury Grand Marquis review
Mercury Grand Marquis Real Gas Mileage: Cons
YearBody/PowertrainComment
2005 4dr Sedan 239-horsepower 4.6L V8
4-speed automatic RWD
The V-8 is thirsty for city driving. The extra power would be nice for highway & mountain driving, though. see full Mercury Grand Marquis review