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I have posted this before but it has been a while so there is more data now. Fuelly.com compiles user data to show what mpg people are actually getting. No, it is not the most robust data set ever and it is self-reported data, so take it for what it is. I also didn't parse the data to differentiate between trim levels, axle ratio, etc. Anyway:
Based on data from 51 vehicles, 1,562 fuel-ups and 519,072 miles of driving, the 2018 Ford Expedition gets a combined Avg MPG of 16.75 with a 0.11 MPG margin of error.
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Based on data from 22 vehicles, 257 fuel-ups and 73,657 miles of driving, the 2019 Ford Expedition gets a combined Avg MPG of 15.79 with a 0.49 MPG margin of error.
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