2023 GMC Sierra MPG

Based on data from 5 vehicles, 249 fuel-ups and 106,949 miles of driving, the 2023 GMC Sierra gets a combined Avg MPG of 22.54 with a 0.53 MPG margin of error.

Below you can see a distribution of the fuel-ups with 6 outliers (2.35%) 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 • 72 Fuel-ups

  Property of 920AT4

• 21.4 Avg MPG

• Sierra 1500 Duramax

  2023 GMC Sierra 1500 SLT
  Added May 2023 • 52 Fuel-ups

  Property of Jorica

• 24.4 Avg MPG

• My AT4

  2023 GMC Sierra 1500 AT4 L3 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Mar 2023 • 72 Fuel-ups

  Property of Robbo2014

• 26.0 Avg MPG

• White Drip

  2023 GMC Sierra 1500 AT4
  Added Jul 2023 • 34 Fuel-ups

  Property of hawk37

• 19.4 Avg MPG

• My Sierra

  2023 GMC Sierra 1500 AT4
  Added May 2023 • 35 Fuel-ups

  Property of duece31

• 19.4 Avg MPG