2023 GMC Sierra 2500 HD MPG

Based on data from 4 vehicles, 83 fuel-ups and 30,787 miles of driving, the 2023 GMC Sierra 2500 HD gets a combined Avg MPG of 15.16 with a 0.79 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 4 vehicles in the system.

• My Sierra 2500 HD

  2023 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Mar 2024 • 8 Fuel-ups

  Property of briank461

• 15.0 Avg MPG

• My Sierra 2500 HD

  2023 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 10 Speed
  Added May 2023 • 57 Fuel-ups

  Property of Gaderider

• 16.6 Avg MPG

• New Work Truck

  2023 GMC Sierra 2500 HD SLT 6.6L V8 GAS Automatic 6 Speed
  Added Jun 2023 • 23 Fuel-ups

  Property of HoundzRig

• 11.9 Avg MPG

• My Sierra 2500 HD

  2023 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Jul 2023 • 7 Fuel-ups

  Property of apm4471

• 12.9 Avg MPG