2008 Peterbilt 389 MPG

Based on data from 4 vehicles, 353 fuel-ups and 341,401 miles of driving, the 2008 Peterbilt 389 gets a combined Avg MPG of 5.28 with a 0.10 MPG margin of error.

Below you can see a distribution of the fuel-ups with 24 outliers (6.37%) removed.

Following shows the average MPG of each of the 4 vehicles in the system.

• My 389

  2008 Peterbilt 389
  Added Oct 2023 • 8 Fuel-ups

  Property of NB77

• 5.4 Avg MPG

• My 389

  2008 Peterbilt 389
  Added Oct 2022 • 61 Fuel-ups

  Property of srdevil20

• 6.9 Avg MPG

• My 389

  2008 Peterbilt 389
  Added May 2022 • 135 Fuel-ups

  Property of Hollywood24

• 4.7 Avg MPG

• My 389

  2008 Peterbilt 389 15.0L L6 DIESEL
  Added Jul 2019 • 228 Fuel-ups

  Property of david0982

• 5.5 Avg MPG