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2020 GMC Sierra 2500 HD MPG

Based on data from 48 vehicles, 3,251 fuel-ups and 1,198,955 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 (0.88%) removed.

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

2020 GMC Sierra 2500 HDs For Sale Nearby

  • 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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