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Mercury Grand Marquis Fuel Economy (km/L)

km/L Number of Vehicles
38 kilometers per liter 1 vehicles
39 kilometers per liter 0 vehicles
40 kilometers per liter 0 vehicles
41 kilometers per liter 0 vehicles
42 kilometers per liter 1 vehicles
43 kilometers per liter 2 vehicles
44 kilometers per liter 0 vehicles
45 kilometers per liter 2 vehicles
46 kilometers per liter 0 vehicles
47 kilometers per liter 1 vehicles
48 kilometers per liter 1 vehicles
49 kilometers per liter 1 vehicles
50 kilometers per liter 0 vehicles
51 kilometers per liter 1 vehicles
52 kilometers per liter 4 vehicles
53 kilometers per liter 3 vehicles
54 kilometers per liter 4 vehicles
55 kilometers per liter 5 vehicles
56 kilometers per liter 3 vehicles
57 kilometers per liter 3 vehicles
58 kilometers per liter 4 vehicles
59 kilometers per liter 3 vehicles
60 kilometers per liter 4 vehicles
61 kilometers per liter 3 vehicles
62 kilometers per liter 4 vehicles
63 kilometers per liter 2 vehicles
64 kilometers per liter 2 vehicles
65 kilometers per liter 4 vehicles
66 kilometers per liter 2 vehicles
67 kilometers per liter 0 vehicles
68 kilometers per liter 4 vehicles
69 kilometers per liter 0 vehicles
70 kilometers per liter 2 vehicles
71 kilometers per liter 1 vehicles
Model Year Body/Powertrain km/L  
2010 2010 4dr Sedan 224-hp 4.6L V8 4-sp automatic RWD 59.5
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With the 167 kilowatts 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, the 2010 Mercury Grand Marquis has been averaging 59.5 L/100km (liters per 100 kilometers).

The 2010 Mercury Grand Marquiss in this analysis were driven mostly on the highway at an average speed of 70 kilometers per hour (about 90 percent of the kilometers driven). The rest of the kilometers were in the suburbs (0 percent), in the city (0 percent), and in heavy traffic (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.
2009 2009 4dr Sedan 224-hp 4.6L V8 4-sp automatic RWD 44.7
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2005 2005 4dr Sedan 239-hp 4.6L V8 4-sp automatic RWD 56
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2004 2004 4dr Sedan 239-hp 4.6L V8 4-sp automatic RWD 60.48
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2004 2004 4dr Sedan 224-hp 4.6L V8 4-sp automatic RWD 55
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2003 2003 4dr Sedan 239-hp 4.6L V8 4-sp automatic RWD 51.3
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2003 2003 4dr Sedan 224-hp 4.6L V8 4-sp automatic RWD 43.54
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2002 2002 4dr Sedan 239-hp 4.6L V8 4-sp automatic RWD 51.7
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2002 2002 4dr Sedan 224-hp 4.6L V8 4-sp automatic RWD 47.7
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2000 2000 4dr Sedan 239-hp 4.6L V8 4-sp automatic RWD 51.25
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2000 2000 4dr Sedan 224-hp 4.6L V8 4-sp automatic RWD 51.45
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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
 

Mercury Grand Marquis Gas Mileage (km/L)

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 km/L based on how and where you drive a car.