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Mercury Grand Marquis MPG


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Model Year Body/Powertrain MPG  
2005 2005 4dr Sedan 239-hp 4.6L V8 4-sp automatic RWD 23.81
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With the 239-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, the 2005 Mercury Grand Marquis has been averaging 23.81 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 city (5 percent), in heavy traffic (5 percent), and in the suburbs (0 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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See TrueDelta's information for all Sedans
See TrueDelta's information for all Mercury models.

What Our Members Are Saying about the Real Gas Mileage of the 2005 Mercury Grand Marquis

2005 Mercury Grand Marquis Real Gas Mileage: Cons
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

2005 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.