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Mercury Grand Marquis Fuel Economy (MPG)

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Mercury Grand Marquis Mercury Grand Marquis 2010 25.3 MPG Highway Percentage 90 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 25.300
2010 4dr Sedan 224-horsepower 4.6L V8
4-speed automatic RWD
flat med light 0 0 10 90 70 25.3  
  Averages flat med light 0 0 10 90 70 25.3
With the 224-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, 2010 Mercury Grand Marquis fuel economy has been averaging 25.3 MPG (miles per gallon).

The 2010 Mercury Grand Marquiss in this analysis were driven mostly on the highway at an average speed of 70 miles per hour (about 90 percent of the miles driven). The rest of the miles were in the suburbs (10 percent), in heavy traffic (0 percent), and in the city (0 percent).

In addition the average 2010 Mercury Grand Marquis in this analysis was driven on flat terrain with a medium foot and the AC on only some of the time.
 
Mercury Grand Marquis Mercury Grand Marquis 2009 19.0 MPG Highway Percentage 75 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
2009 4dr Sedan 224-horsepower 4.6L V8
4-speed automatic RWD
flat med hvy 5 5 15 75 70 19.000
2009 4dr Sedan 224-horsepower 4.6L V8
4-speed automatic RWD
flat med hvy 5 5 15 75 70 19.0  
  Averages flat med hvy 5 5 15 75 70 19.0
With the 224-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, the 2009 Mercury Grand Marquis has been averaging 19.0 MPG (miles per gallon).

The 2009 Mercury Grand Marquiss in this analysis were driven mostly on the highway at an average speed of 70 miles per hour (about 75 percent of the miles driven). The rest of the miles were in the suburbs (15 percent), in heavy traffic (5 percent), and in the city (5 percent).

In addition the average 2009 Mercury Grand Marquis in this analysis was driven on flat terrain with a medium foot and the AC on most or all of the time.
 
Mercury Grand Marquis Mercury Grand Marquis 2005 23.8 MPG Highway Percentage 75 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
2005 4dr Sedan 239-horsepower 4.6L V8
4-speed automatic RWD
flat med none 5 5 15 75 60 23.810
2005 4dr Sedan 239-horsepower 4.6L V8
4-speed automatic RWD
flat med none 5 5 15 75 60 23.8  
  Averages flat med none 5 5 15 75 60 23.8
With the 239-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, 2005 Mercury Grand Marquis gas mileage has been averaging 23.8 MPG (miles per gallon).

The 2005 Mercury Grand Marquiss in this analysis were driven mostly on the highway at an average speed of 60 miles per hour (about 75 percent of the miles driven). The rest of the miles were in the suburbs (15 percent), in heavy traffic (5 percent), and in the city (5 percent).

In addition the average 2005 Mercury Grand Marquis in this analysis was driven on flat terrain with a medium foot and the AC not used at all.
 
Mercury Grand Marquis Mercury Grand Marquis 2004 25.7 MPG Highway Percentage 92 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 239-horsepower 4.6L V8
4-speed automatic RWD
flat med light 0 5 0 95 75 26.400
  flat med none 0 5 0 95 70 27.516
  flat med none 0 5 0 95 75 27.786
  flat med none 0 5 5 90 75 24.180
  flat med none 0 2 0 98 75 26.331
  flat med light 0 10 10 80 70 22.100
  flat med none 0 0 5 95 75 28.043
  flat light none 0 0 0 100 70 26.000
  flat med none 0 5 0 95 75 23.140
  flat light light 0 0 2 98 65 28.931
  flat med light 0 5 5 90 75 22.700
  flat med none 0 0 5 95 75 27.300
  flat light light 0 0 2 98 65 29.756
  flat med none 0 1 0 99 75 24.191
  flat med none 0 5 0 95 70 26.232
  flat med none 0 5 0 95 80 23.046
  flat med light 0 5 0 95 70 26.700
  flat med light 5 5 0 90 75 24.700
  flat med none 0 5 0 95 75 26.774
  mtns light none 19 22 24 35 60 23.000
  flat med none 0 2 3 95 80 24.931
  flat med none 0 5 10 85 75 22.566
  flat med light 0 0 5 95 75 25.000
  flat light none 0 0 0 100 70 29.100
  flat med none 0 5 15 80 75 23.517
  flat light light 0 0 2 98 65 28.175
  flat light none 0 0 1 99 70 27.500
  flat light light 0 0 2 98 65 30.087
  flat med none 0 5 15 80 75 23.427
  flat med none 0 0 1 99 80 25.473
  flat light light 0 0 2 98 65 29.633
  flat med light 0 0 0 100 75 25.800
  flat light light 0 0 2 98 65 29.024
  flat med none 5 10 0 85 70 23.151
  flat med none 0 5 0 95 75 27.361
  flat med none 0 5 5 90 70 23.795
  flat med none 0 5 5 90 75 24.315
  flat med none 0 1 0 99 75 25.036
  flat med none 0 0 5 95 75 24.600
  flat med none 0 4 1 95 80 24.512
  flat med none 0 1 0 99 75 27.742
  flat med none 0 2 3 95 75 25.294
  flat med none 0 0 5 95 75 24.593
  flat med light 5 5 0 90 75 23.500
  flat med none 1 10 22 67 70 22.270
  flat med none 0 5 0 95 75 25.308
  flat med none 10 5 0 85 75 23.816
  flat med light 0 0 5 95 75 26.400
  flat med light 0 5 0 95 65 29.100
2004 4dr Sedan 239-horsepower 4.6L V8
4-speed automatic RWD
flat med none 1 3 3 92 73 25.7  
  Averages flat med none 1 3 3 92 73 25.7
With the 239-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, 2004 Mercury Grand Marquis fuel economy has been averaging 25.7 MPG (miles per gallon).

The 2004 Mercury Grand Marquiss in this analysis were driven mostly on the highway at an average speed of 73 miles per hour (about 92 percent of the miles driven). The rest of the miles were in the city (3 percent), in the suburbs (3 percent), and in heavy traffic (1 percent).

In addition the average 2004 Mercury Grand Marquis in this analysis was driven on flat terrain with a medium foot and the AC not used at all.
 
Mercury Grand Marquis Mercury Grand Marquis 2004 23.4 MPG Highway Percentage 30 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 224-horsepower 4.6L V8
4-speed automatic RWD
flat med light 5 5 60 30 70 23.400
2004 4dr Sedan 224-horsepower 4.6L V8
4-speed automatic RWD
flat med light 5 5 60 30 70 23.4  
  Averages flat med light 5 5 60 30 70 23.4
With the 224-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, the 2004 Mercury Grand Marquis has been averaging 23.4 MPG (miles per gallon).

The 2004 Mercury Grand Marquiss in this analysis were driven mostly in the suburbs (about 60 percent of the miles driven). The rest of the miles were on the highway at an average speed of 70 miles per hour (30 percent), in heavy traffic (5 percent), and in the city (5 percent).

In addition the average 2004 Mercury Grand Marquis in this analysis was driven on flat terrain with a medium foot and the AC on only some of the time.
 
Mercury Grand Marquis Mercury Grand Marquis 2003 21.8 MPG Highway Percentage 87 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
2003 4dr Sedan 239-horsepower 4.6L V8
4-speed automatic RWD
flat med hvy 0 1 12 87 75 21.800
2003 4dr Sedan 239-horsepower 4.6L V8
4-speed automatic RWD
flat med hvy 0 1 12 87 75 21.8  
  Averages flat med hvy 0 1 12 87 75 21.8
With the 239-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, 2003 Mercury Grand Marquis gas mileage has been averaging 21.8 MPG (miles per gallon).

The 2003 Mercury Grand Marquiss in this analysis were driven mostly on the highway at an average speed of 75 miles per hour (about 87 percent of the miles driven). The rest of the miles were in the suburbs (12 percent), in the city (1 percent), and in heavy traffic (0 percent).

In addition the average 2003 Mercury Grand Marquis in this analysis was driven on flat terrain with a medium foot and the AC on most or all of the time.
 
Mercury Grand Marquis Mercury Grand Marquis 2003 18.5 MPG Highway Percentage 40 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
2003 4dr Sedan 224-horsepower 4.6L V8
4-speed automatic RWD
flat light none 0 55 40 5 70 16.300
  flat light none 5 50 30 15 70 18.200
  flat med hvy 20 24 24 32 70 22.000
  flat med light 50 0 0 50 65 18.000
  flat light hvy 0 1 1 99 65 18.123
2003 4dr Sedan 224-horsepower 4.6L V8
4-speed automatic RWD
flat light light 15 26 19 40 68 18.5  
  Averages flat light light 15 26 19 40 68 18.5
With the 224-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, 2003 Mercury Grand Marquis fuel economy has been averaging 18.5 MPG (miles per gallon).

The 2003 Mercury Grand Marquiss in this analysis were driven mostly on the highway at an average speed of 68 miles per hour (about 40 percent of the miles driven). The rest of the miles were in the city (26 percent), in the suburbs (19 percent), and in heavy traffic (15 percent).

In addition the average 2003 Mercury Grand Marquis in this analysis was driven on flat terrain with a light foot and the AC on only some of the time.
 
Mercury Grand Marquis Mercury Grand Marquis 2002 22.0 MPG Highway Percentage 31 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
2002 4dr Sedan 235-horsepower 4.6L V8
4-speed automatic RWD
flat light light 22 23 23 31 60 22.000
2002 4dr Sedan 235-horsepower 4.6L V8
4-speed automatic RWD
flat light light 22 23 23 31 60 22.0  
  Averages flat light light 22 23 23 31 60 22.0
With the 239-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, the 2002 Mercury Grand Marquis has been averaging 22.0 MPG (miles per gallon).

The 2002 Mercury Grand Marquiss in this analysis were driven mostly on the highway at an average speed of 60 miles per hour (about 31 percent of the miles driven). The rest of the miles were in the city (23 percent), in the suburbs (23 percent), and in heavy traffic (22 percent).

In addition the average 2002 Mercury Grand Marquis in this analysis was driven on flat terrain with a light foot and the AC on only some of the time.
 
Mercury Grand Marquis Mercury Grand Marquis 2002 20.3 MPG Highway Percentage 10 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
2002 4dr Sedan 220-horsepower 4.6L V8
4-speed automatic RWD
flat light hvy 5 25 60 10 60 20.300
2002 4dr Sedan 220-horsepower 4.6L V8
4-speed automatic RWD
flat light hvy 5 25 60 10 60 20.3  
  Averages flat light hvy 5 25 60 10 60 20.3
With the 224-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, 2002 Mercury Grand Marquis gas mileage has been averaging 20.3 MPG (miles per gallon).

The 2002 Mercury Grand Marquiss in this analysis were driven mostly in the suburbs (about 60 percent of the miles driven). The rest of the miles were in the city (25 percent), on the highway at an average speed of 60 miles per hour (10 percent), and in heavy traffic (5 percent).

In addition the average 2002 Mercury Grand Marquis in this analysis was driven on flat terrain with a light foot and the AC on most or all of the time.
 
Mercury Grand Marquis Mercury Grand Marquis 2000 21.8 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
2000 4dr Sedan 215-horsepower 4.6L V8
4-speed automatic RWD
flat light hvy 0 0 50 50 70 22.900
  flat med hvy 0 0 50 50 70 20.661
2000 4dr Sedan 215-horsepower 4.6L V8
4-speed automatic RWD
flat med hvy 0 0 50 50 70 21.8  
  Averages flat med hvy 0 0 50 50 70 21.8
With the 239-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, 2000 Mercury Grand Marquis fuel economy has been averaging 21.8 MPG (miles per gallon).

The 2000 Mercury Grand Marquiss in this analysis were driven mostly on the highway at an average speed of 70 miles per hour (about 50 percent of the miles driven). The rest of the miles were in the suburbs (50 percent), in heavy traffic (0 percent), and in the city (0 percent).

In addition the average 2000 Mercury Grand Marquis in this analysis was driven on flat terrain with a medium foot and the AC on most or all of the time.
 
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
2000 4dr Sedan 200-horsepower 4.6L V8
4-speed automatic RWD
flat light none 0 0 0 100 60 26.000
  flat med light 0 0 50 50 65 19.000
  flat light none 5 15 20 60 60 20.000
  flat light none 0 0 90 10 60 22.500
2000 4dr Sedan 200-horsepower 4.6L V8
4-speed automatic RWD
flat light none 1 4 40 55 61 21.9  
  Averages flat light none 1 4 40 55 61 21.9
With the 224-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, the 2000 Mercury Grand Marquis has been averaging 21.9 MPG (miles per gallon).

The 2000 Mercury Grand Marquiss in this analysis were driven mostly on the highway at an average speed of 61 miles per hour (about 55 percent of the miles driven). The rest of the miles were in the suburbs (40 percent), in the city (4 percent), and in heavy traffic (1 percent).

In addition the average 2000 Mercury Grand Marquis in this analysis was driven on flat terrain with a light foot and the AC not used at all.

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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
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.
 

Mercury Grand Marquis Gas Mileage (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 Grand Marquis's real-world MPG based on how and where you drive a car.