2023 GMC Sierra 3500 HD MPG

Based on data from 12 vehicles, 464 fuel-ups and 149,983 miles of driving, the 2023 GMC Sierra 3500 HD gets a combined Avg MPG of 12.77 with a 0.38 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 12 vehicles in the system.

• My Sierra 3500 HD

  2023 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Dec 2024 • 12 Fuel-ups

  Property of Grizzz

• 15.2 Avg MPG

• 2023 Sierra

  2023 GMC Sierra 3500 HD SLE 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Dec 2024 • 89 Fuel-ups

  Property of iamryanash

• 13.6 Avg MPG

• My Sierra 3500 HD

  2023 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Jan 2024 • 43 Fuel-ups

  Property of turbotuner

• 14.9 Avg MPG

• GMC Sierra 3500 HD Denali Dually

  2023 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Jan 2023 • 51 Fuel-ups

  Property of 2023Dually

• 10.3 Avg MPG

• 2023 GMC Sierra 3500HD

  2023 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jul 2023 • 52 Fuel-ups

  Property of Hawk

• 11.5 Avg MPG

• My Sierra 3500 HD

  2023 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2023 • 72 Fuel-ups

  Property of Roadrunner2019

• 13.9 Avg MPG

• Truck #36 LG

  2023 GMC Sierra 3500 HD Pro 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2024 • 38 Fuel-ups

  Property of gprp

• 11.7 Avg MPG

• My Sierra 3500 HD

  2023 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Jul 2024 • 17 Fuel-ups

  Property of HaulnNutz

• 15.4 Avg MPG

• Blue Steel

  2023 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Aug 2023 • 31 Fuel-ups

  Property of taintfair

• 15.1 Avg MPG

• My Sierra 3500 HD

  2023 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Jan 2024 • 19 Fuel-ups

  Property of gmcphoto25

• 9.9 Avg MPG

• My Sierra 3500 HD

  2023 GMC Sierra 3500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
  Added May 2023 • 58 Fuel-ups

  Property of ncbruen

• 11.0 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