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Mercury Grand Marquis MPG

MPG Number of Vehicles
22 miles per gallon 2 vehicles
23 miles per gallon 8 vehicles
24 miles per gallon 7 vehicles
25 miles per gallon 10 vehicles
26 miles per gallon 6 vehicles
27 miles per gallon 4 vehicles
28 miles per gallon 6 vehicles
29 miles per gallon 4 vehicles
30 miles per gallon 3 vehicles
Model Year Body/Powertrain MPG  
2004 2004 4dr Sedan 239-hp 4.6L V8 4-sp automatic RWD 25.71
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With the 239-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, the 2004 Mercury Grand Marquis has been averaging 25.71 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 92.2 percent of the miles driven). The rest of the miles were in the city (3.5 percent), in heavy traffic (0.9 percent), and in the suburbs (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.
2004 2004 4dr Sedan 224-hp 4.6L V8 4-sp automatic RWD 23.4
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What Our Members Are Saying about the Real Gas Mileage of the 2004 Mercury Grand Marquis

2004 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
 

2004 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.