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.
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Mercury Grand Marquis
Mercury Grand Marquis Gas Mileage
| 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 |
| 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. |
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| 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 | 19.0 |
| 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. |
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| 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 | 23.8 |
| 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. |
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| 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 302-horsepower 4.6L V8 4-speed automatic RWD |
flat | med | none | 25 | 10 | 20 | 45 | 80 | 15.0 |
| flat | med | hvy | 5 | 5 | 15 | 75 | 65 | 21.0 | ||
| flat | med | none | 5 | 5 | 15 | 75 | 65 | 21.0 | ||
| 2004 | 4dr Sedan 302-horsepower 4.6L V8 4-speed automatic RWD |
flat | med | light | 12 | 7 | 17 | 65 | 70 | 19.0 |
| Averages | flat | med | light | 12 | 7 | 17 | 65 | 70 | 19.0 | |
| With the 302-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, 2004 Mercury Grand Marquis fuel economy has been averaging
19.0 MPG (miles per gallon). The 2004 Mercury Grand Marquiss in this analysis were driven mostly on the highway at an average speed of 70 miles per hour (about 65 percent of the miles driven). The rest of the miles were in the suburbs (17 percent), in heavy traffic (12 percent), and in the city (7 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. |
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| 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 | none | 0 | 2 | 3 | 95 | 75 | 25.3 |
| flat | med | none | 0 | 2 | 3 | 95 | 80 | 24.9 | ||
| flat | med | none | 0 | 5 | 0 | 95 | 75 | 26.8 | ||
| flat | med | none | 0 | 1 | 0 | 99 | 75 | 27.7 | ||
| flat | med | none | 0 | 5 | 5 | 90 | 75 | 24.2 | ||
| 2004 | 4dr Sedan 239-horsepower 4.6L V8 4-speed automatic RWD |
flat | med | none | 0 | 3 | 2 | 95 | 76 | 25.8 |
| Averages | flat | med | none | 0 | 3 | 2 | 95 | 76 | 25.8 | |
| With the 239-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, the 2004 Mercury Grand Marquis has been averaging
25.8 MPG (miles per gallon). The 2004 Mercury Grand Marquiss in this analysis were driven mostly on the highway at an average speed of 76 miles per hour (about 95 percent of the miles driven). The rest of the miles were in the city (3 percent), in the suburbs (2 percent), and in heavy traffic (0 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. |
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| 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 | 23.4 |
| 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, 2004 Mercury Grand Marquis gas mileage 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. |
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| 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 302-horsepower 4.6L V8 4-speed automatic RWD |
flat | light | hvy | 0 | 1 | 1 | 99 | 65 | 18.1 |
| 2003 | 4dr Sedan 302-horsepower 4.6L V8 4-speed automatic RWD |
flat | light | hvy | 0 | 1 | 1 | 99 | 65 | 18.1 |
| Averages | flat | light | hvy | 0 | 1 | 1 | 99 | 65 | 18.1 | |
| With the 302-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, 2003 Mercury Grand Marquis fuel economy has been averaging
18.1 MPG (miles per gallon). The 2003 Mercury Grand Marquiss in this analysis were driven mostly on the highway at an average speed of 65 miles per hour (about 99 percent of the miles driven). The rest of the miles were in the city (1 percent), in the suburbs (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 light foot and the AC on most or all of the time. |
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| 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 | 21.8 |
| 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, the 2003 Mercury Grand Marquis 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. |
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| 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 | 5 | 50 | 30 | 15 | 70 | 18.2 |
| flat | light | none | 0 | 55 | 40 | 5 | 70 | 16.3 | ||
| flat | med | hvy | 20 | 24 | 24 | 32 | 70 | 22.0 | ||
| flat | med | light | 50 | 0 | 0 | 50 | 65 | 18.0 | ||
| 2003 | 4dr Sedan 224-horsepower 4.6L V8 4-speed automatic RWD |
flat | med | light | 19 | 32 | 24 | 26 | 69 | 18.6 |
| Averages | flat | med | light | 19 | 32 | 24 | 26 | 69 | 18.6 | |
| With the 224-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, 2003 Mercury Grand Marquis gas mileage has been averaging
18.6 MPG (miles per gallon). The 2003 Mercury Grand Marquiss in this analysis were driven mostly in the city (about 32 percent of the miles driven). The rest of the miles were on the highway at an average speed of 69 miles per hour (26 percent), in the suburbs (24 percent), and in heavy traffic (19 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 only some of the time. |
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| 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 | 22.0 |
| 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 235-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, 2002 Mercury Grand Marquis fuel economy 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. |
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| 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 | 20.3 |
| 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 220-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, the 2002 Mercury Grand Marquis 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. |
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| 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 | 22.9 |
| 2000 | 4dr Sedan 215-horsepower 4.6L V8 4-speed automatic RWD |
flat | light | hvy | 0 | 0 | 50 | 50 | 70 | 22.9 |
| Averages | flat | light | hvy | 0 | 0 | 50 | 50 | 70 | 22.9 | |
| With the 215-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, 2000 Mercury Grand Marquis gas mileage has been averaging
22.9 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 light foot and the AC on most or all of the time. |
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| 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 | 26.0 |
| flat | med | light | 0 | 0 | 50 | 50 | 65 | 19.0 | ||
| flat | light | none | 5 | 15 | 20 | 60 | 60 | 20.0 | ||
| flat | light | none | 0 | 0 | 90 | 10 | 60 | 22.5 | ||
| 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 200-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, 2000 Mercury Grand Marquis fuel economy 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 Mercury Grand Marquis MPG
| Mercury Grand Marquis Fuel Economy: Pros | ||
| Year | Body/Powertrain | Comment |
| 2008 | 4dr Sedan 224-horsepower 4.6L V8 4-speed automatic RWD |
Incredible- 21mpg city, 27mpg HWY |
| Mercury Grand Marquis Fuel Economy: Cons | ||
| Year | Body/Powertrain | Comment |
| 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. |
