2020 GMC Sierra 2500 HD MPG

Based on data from 48 vehicles, 3,245 fuel-ups and 1,196,992 miles of driving, the 2020 GMC Sierra 2500 HD gets a combined Avg MPG of 14.26 with a 0.12 MPG margin of error.

Below you can see a distribution of the fuel-ups with 29 outliers (0.89%) removed.

Following shows the average MPG of each of the 48 vehicles in the system.

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• My Sierra 2500 HD

  2020 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed
  Added May 2022 • 51 Fuel-ups

  Property of jblythe

• 12.9 Avg MPG

• My Sierra 2500 HD

  2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added May 2021 • 4 Fuel-ups

  Property of vepil

• 16.2 Avg MPG

• My Sierra 2500 HD

  2020 GMC Sierra 2500 HD Denali 6.6L V8 GAS Automatic 6 Speed
  Added Aug 2020 • 8 Fuel-ups

  Property of shreff86

• 11.6 Avg MPG

• My Sierra 2500 HD

  2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Feb 2021 • 3 Fuel-ups

  Property of NickCrow

• 13.6 Avg MPG

• My Sierra 2500 HD

  2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Oct 2020 • 25 Fuel-ups

  Property of powell1983

• 16.7 Avg MPG

• Wanda

  2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
  Added Feb 2020 • 32 Fuel-ups

  Property of amepena

• 17.9 Avg MPG

• Sierra 2500HD

  2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added May 2020 • 8 Fuel-ups

  Property of M3atEater

• 18.9 Avg MPG

• Beastly Bunny

  2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic Crew Cab Pickup
  Added Feb 2020 • 6 Fuel-ups

  Property of Jvorpagel

• 14.3 Avg MPG

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