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2014 Peterbilt 388 MPG

Based on data from 1 vehicles, 3 fuel-ups and 2,614 miles of driving, the 2014 Peterbilt 388 gets a combined Avg MPG of 8.34 with a 23.56 MPG margin of error.

Below you can see a distribution of the fuel-ups with 0 outliers (0.00%) removed.

  • My 388

    2014 Peterbilt 388 12.9L -6 DIESEL Manual 9 Speed
    Added May 2022 • 10 Fuel-ups

    Property of gill1112

  • 7.2 Avg MPG

Tips

Cruise Control not always better

On flat or constant grades, the cruise works best for MPG. ... ...

by soutthpaw

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