1998 Peterbilt 379 MPG

Based on data from 8 vehicles, 379 fuel-ups and 288,189 miles of driving, the 1998 Peterbilt 379 gets a combined Avg MPG of 4.82 with a 0.14 MPG margin of error.

Below you can see a distribution of the fuel-ups with 2 outliers (0.52%) removed.

Following shows the average MPG of each of the 8 vehicles in the system.

• My 379

  1998 Peterbilt 379 14.6L L6 DIESEL
  Added Aug 2022 • 273 Fuel-ups

  Property of 379peterbilt

• 4.8 Avg MPG

• 379

  1998 Peterbilt 379 12.0L -6 DIESEL Tractor Truck - Long Conventional
  Added Jan 2025 • 57 Fuel-ups

  Property of ljb150330

• 5.8 Avg MPG

• Charlene Marshmallow

  1998 Peterbilt 379 15.0L -6 DIESEL Manual Tractor Truck - Long Conventional
  Added Feb 2024 • 41 Fuel-ups

  Property of DShadows13

• 5.0 Avg MPG

• My 379

  1998 Peterbilt 379 14.6L L6 DIESEL
  Added Apr 2025 • 35 Fuel-ups

  Property of Amishride

• 5.3 Avg MPG

• #9

  1998 Peterbilt 379 10.3L L6 DIESEL
  Added Aug 2024 • 7 Fuel-ups

  Property of Peterbilt56

• 4.7 Avg MPG

• My 379

  1998 Peterbilt 379 14.6L L6 DIESEL
  Added Jul 2024 • 4 Fuel-ups

  Property of Pacolips2003

• 5.4 Avg MPG

• Gremlin

  1998 Peterbilt 379 12.7L L6 DIESEL
  Added Jan 2025 • 22 Fuel-ups

  Property of thalbert1

• 5.8 Avg MPG

• My 379

  1998 Peterbilt 379 14.0L L6 DIESEL
  Added Dec 2018 • 7 Fuel-ups

  Property of chris02

• 6.1 Avg MPG