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Mercury Grand Marquis MPG
| MPG | Number of Vehicles |
| 19 miles per gallon | 1 vehicles |
| 20 miles per gallon | 1 vehicles |
| 21 miles per gallon | 1 vehicles |
| 22 miles per gallon | 0 vehicles |
| 23 miles per gallon | 2 vehicles |
| 24 miles per gallon | 0 vehicles |
| 25 miles per gallon | 0 vehicles |
| 26 miles per gallon | 1 vehicles |
| Model Year | Body/Powertrain | MPG | |
| 2000 | 2000 4dr Sedan 239-hp 4.6L V8 4-sp automatic RWD | 21.78 | See all data |
| With the 239-horsepower 4.6L V8 engine, 4-speed automatic transmission, and rear-wheel drive, the 2000 Mercury Grand Marquis has been averaging 21.78 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 (0 percent), in the city (0 percent), and in heavy traffic (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. |
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| 2000 | 2000 4dr Sedan 224-hp 4.6L V8 4-sp automatic RWD | 21.88 | See all data |
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4-speed automatic RWD
4-speed automatic RWD