2018 Peterbilt 388 MPG

Based on data from 14 vehicles, 1,050 fuel-ups and 579,027 miles of driving, the 2018 Peterbilt 388 gets a combined Avg MPG of 4.84 with a 0.07 MPG margin of error.

Below you can see a distribution of the fuel-ups with 213 outliers (16.86%) removed.

Following shows the average MPG of each of the 14 vehicles in the system.

• Volvo 2018

  2018 Peterbilt 388
  Added May 2025 • 25 Fuel-ups

  Property of zokidgr8

• 6.0 Avg MPG

• Penske

  2018 Peterbilt 388
  Added May 2025 • 10 Fuel-ups

  Property of Blondiesv0552

• 9.4 Avg MPG

• Weinsberg

  2018 Peterbilt 388
  Added May 2023 • 185 Fuel-ups

  Property of ValTeR

• 25.7 Avg MPG

• Truck 22

  2018 Peterbilt 388 Manual Gliders - Long Conventional
  Added Oct 2023 • 55 Fuel-ups

  Property of Glowstickactual

• 5.3 Avg MPG

• 44

  2018 Peterbilt 388
  Added May 2021 • 655 Fuel-ups

  Property of Trucker53

• 4.5 Avg MPG

• Truck Cat Power

  2018 Peterbilt 388 L6 DIESEL Manual 9 Speed Gliders - Long Conventional
  Added Mar 2020 • 197 Fuel-ups

  Property of RSpofford

• 5.1 Avg MPG

• Truck

  2018 Peterbilt 388 L6 DIESEL Standard 9 Speed Tractor Truck - Long Conventional
  Added Apr 2018 • 230 Fuel-ups

  Property of RSpofford

• 4.9 Avg MPG

• 2020 389

  2018 Peterbilt 388
  Added Sep 2019 • 27 Fuel-ups

  Property of magoocyn

• 4.7 Avg MPG

• 2020 389 DEF

  2018 Peterbilt 388
  Added Sep 2019 • 11 Fuel-ups

  Property of magoocyn

• 117.2 Avg MPG

• 389 Pete

  2018 Peterbilt 388
  Added Jun 2019 • 41 Fuel-ups

  Property of magoocyn

• 4.8 Avg MPG

• 389def

  2018 Peterbilt 388
  Added Aug 2019 • 4 Fuel-ups

  Property of magoocyn

• 110.5 Avg MPG

• 40

  2018 Peterbilt 388
  Added May 2021 • 3 Fuel-ups

  Property of Trucker53

• 3.9 Avg MPG

• 1850

  2018 Peterbilt 388
  Added Dec 2017 • 14 Fuel-ups

  Property of bullrack

• 7.7 Avg MPG

• 86262

  2018 Peterbilt 388
  Added Apr 2019 • 25 Fuel-ups

  Property of HappyCat

• 6.7 Avg MPG