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2021 GMC Sierra 2500 HD MPG

Based on data from 63 vehicles, 3,510 fuel-ups and 1,123,891 miles of driving, the 2021 GMC Sierra 2500 HD gets a combined Avg MPG of 13.16 with a 0.13 MPG margin of error.

Below you can see a distribution of the fuel-ups with 11 outliers (0.31%) removed.

Following shows the average MPG of each of the 63 vehicles in the system.

2021 GMC Sierra 2500 HDs For Sale Nearby

  • My Sierra 2500 HD

    2021 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 10 Speed
    Added Jan 2023 • 80 Fuel-ups

    Property of Croybal06

  • 13.5 Avg MPG
  • Big Bubba. My Sierra 2500 HD

    2021 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
    Added Jun 2021 • 88 Fuel-ups

    Property of moose57

  • 16.9 Avg MPG
  • 2021 Denali HD

    2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Nov 2020 • 81 Fuel-ups

    Property of DenaliDad

  • 14.6 Avg MPG
  • My Sierra 2500 HD

    2021 GMC Sierra 2500 HD AT4 6.6L V8 GAS Automatic 6 Speed
    Added Jun 2021 • 158 Fuel-ups

    Property of gregnola

  • 12.5 Avg MPG
  • My Sierra 2500 HD

    2021 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
    Added Apr 2023 • 155 Fuel-ups

    Property of mcgr0401

  • 12.3 Avg MPG
  • Sierra 2500 HD aka Sully

    2021 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
    Added May 2021 • 97 Fuel-ups

    Property of Ryot

  • 12.2 Avg MPG
  • 2500Hd GMC

    2021 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added May 2021 • 119 Fuel-ups

    Property of jmgolden1978

  • 14.0 Avg MPG
  • My Sierra 2500 HD

    2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Apr 2023 • 50 Fuel-ups

    Property of bcfiremedic

  • 12.6 Avg MPG
  • My Sierra 2500 HD

    2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Dec 2022 • 40 Fuel-ups

    Property of ryanhnicholson

  • 11.7 Avg MPG
  • 21 Denali HD

    2021 GMC Sierra 2500 HD Denali 6.6L V8 GAS Automatic 6 Speed
    Added Apr 2021 • 36 Fuel-ups

    Property of shreff86

  • 11.1 Avg MPG
  • My Sierra 2500 HD

    2021 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
    Added Sep 2023 • 128 Fuel-ups

    Property of SeB21

  • 17.0 Avg MPG
  • My Sierra 2500 HD

    2021 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
    Added Jun 2021 • 140 Fuel-ups

    Property of xETERNALx

  • 13.5 Avg MPG
  • AT4 Whore

    2021 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
    Added Mar 2021 • 133 Fuel-ups

    Property of pigpen23

  • 12.3 Avg MPG
  • 2021 Sierra Denali HD

    2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Dec 2020 • 162 Fuel-ups

    Property of LynnE24

  • 14.4 Avg MPG
  • My Sierra 2500 HD

    2021 GMC Sierra 2500 HD SLE 6.6L V8 GAS Automatic 10 Speed
    Added Oct 2021 • 128 Fuel-ups

    Property of bdamats

  • 11.5 Avg MPG
  • My Sierra 2500 HD

    2021 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 10 Speed
    Added Mar 2024 • 6 Fuel-ups

    Property of fredc941

  • 13.6 Avg MPG
  • My Sierra 2500 HD

    2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Dec 2020 • 91 Fuel-ups

    Property of mbrent77

  • 16.3 Avg MPG
  • 2021 Sierra 2500HD

    2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Jan 2024 • 18 Fuel-ups

    Property of Bost05

  • 12.7 Avg MPG
  • My Sierra 2500 HD

    2021 GMC Sierra 2500 HD Denali 6.6L V8 GAS Automatic 6 Speed
    Added Nov 2021 • 119 Fuel-ups

    Property of Danm1228

  • 11.6 Avg MPG
  • 2021 GMC Sierra 2500 HD

    2021 GMC Sierra 2500 HD 6.6L V8 GAS Automatic 6 Speed
    Added Mar 2021 • 57 Fuel-ups

    Property of Hay_Man_40

  • 11.4 Avg MPG

Recent Activity

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