1997 Mercury Grand Marquis MPG
Based on data from 19 vehicles, 1,656 fuel-ups and 411,585 miles of driving, the 1997 Mercury Grand Marquis gets a combined Avg MPG of 18.40 with a 0.22 MPG margin of error.
Below you can see a distribution of the fuel-ups with 11 outliers (0.66%) removed.
Following shows the average MPG of each of the 19 vehicles in the system.
