2023 GMC Sierra 3500 HD MPG

Based on data from 7 vehicles, 146 fuel-ups and 46,948 miles of driving, the 2023 GMC Sierra 3500 HD gets a combined Avg MPG of 13.08 with a 0.69 MPG margin of error.

Below you can see a distribution of the fuel-ups with 0 outliers (0.00%) removed.

Following shows the average MPG of each of the 7 vehicles in the system.

• My Sierra 3500 HD

  2023 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Jan 2024 • 14 Fuel-ups

  Property of turbotuner

• 16.3 Avg MPG

• My Sierra 3500 HD

  2023 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2023 • 31 Fuel-ups

  Property of Roadrunner2019

• 14.4 Avg MPG

• Blue Steel

  2023 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Aug 2023 • 15 Fuel-ups

  Property of taintfair

• 13.9 Avg MPG

• My Sierra 3500 HD

  2023 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Jan 2024 • 4 Fuel-ups

  Property of gmcphoto25

• 12.7 Avg MPG

• GMC Sierra 3500 HD Denali Dually

  2023 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Jan 2023 • 33 Fuel-ups

  Property of 2023Dually

• 10.5 Avg MPG

• My Sierra 3500 HD

  2023 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Jul 2023 • 19 Fuel-ups

  Property of joh02051

• 15.5 Avg MPG

• My Sierra 3500 HD

  2023 GMC Sierra 3500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added May 2023 • 44 Fuel-ups

  Property of ncbruen

• 11.3 Avg MPG