2023 GMC Sierra MPG

Based on data from 4 vehicles, 287 fuel-ups and 123,744 miles of driving, the 2023 GMC Sierra gets a combined Avg MPG of 22.86 with a 0.48 MPG margin of error.

Below you can see a distribution of the fuel-ups with 3 outliers (1.03%) removed.

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

• My AT4

  2023 GMC Sierra 1500 AT4 L3 DIESEL Automatic 10 Speed
  Added Mar 2023 • 93 Fuel-ups

  Property of Robbo2014

• 25.9 Avg MPG

• White Drip

  2023 GMC Sierra 1500 AT4
  Added Jul 2023 • 50 Fuel-ups

  Property of hawk37

• 19.6 Avg MPG

• 2023 GMC Sierra 1500 AT4

  2023 GMC Sierra 1500 AT4
  Added May 2023 • 93 Fuel-ups

  Property of 920AT4

• 21.5 Avg MPG

• Sierra 1500 Duramax

  2023 GMC Sierra 1500 SLT
  Added May 2023 • 64 Fuel-ups

  Property of Jorica

• 24.4 Avg MPG