2023 GMC Sierra MPG

Based on data from 5 vehicles, 295 fuel-ups and 125,301 miles of driving, the 2023 GMC Sierra gets a combined Avg MPG of 22.27 with a 0.53 MPG margin of error.

Below you can see a distribution of the fuel-ups with 3 outliers (1.01%) removed.

Following shows the average MPG of each of the 5 vehicles in the system.

• 2023 GMC Sierra 1500 AT4

  2023 GMC Sierra 1500 AT4
  Added May 2023 • 82 Fuel-ups

  Property of 920AT4

• 21.4 Avg MPG

• My Sierra

  2023 GMC Sierra 1500 AT4
  Added May 2023 • 44 Fuel-ups

  Property of duece31

• 19.0 Avg MPG

• My AT4

  2023 GMC Sierra 1500 AT4 L3 DIESEL Automatic 10 Speed
  Added Mar 2023 • 83 Fuel-ups

  Property of Robbo2014

• 25.9 Avg MPG

• White Drip

  2023 GMC Sierra 1500 AT4
  Added Jul 2023 • 42 Fuel-ups

  Property of hawk37

• 19.5 Avg MPG

• Sierra 1500 Duramax

  2023 GMC Sierra 1500 SLT
  Added May 2023 • 57 Fuel-ups

  Property of Jorica

• 24.4 Avg MPG