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2021 GMC Sierra 2500 HD MPG

Based on data from 42 vehicles, 717 fuel-ups and 236,160 miles of driving, the 2021 GMC Sierra 2500 HD gets a combined Avg MPG of 13.01 with a 0.26 MPG margin of error.

Below you can see a distribution of the fuel-ups with 4 outliers (0.55%) removed.

Following shows the average MPG of each of the 42 vehicles in the system.

2021 GMC Sierra 2500 HDs For Sale Nearby

  • My Sierra 2500 HD

    2021 GMC Sierra 2500 HD AT4 6.6L V8 GAS Automatic 6 Speed
    Added May 2021 • 20 Fuel-ups

    Property of Buellx72

  • 12.2 Avg MPG
  • My Sierra 2500 HD

    2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Feb 2021 • 28 Fuel-ups

    Property of whytebeast

  • 13.0 Avg MPG
  • 2021 Denali HD

    2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Nov 2020 • 27 Fuel-ups

    Property of DenaliDad

  • 13.7 Avg MPG
  • 2021

    2021 GMC Sierra 2500 HD Denali Crew Cab Pickup
    Added Dec 2020 • 31 Fuel-ups

    Property of lampmant

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

    2021 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
    Added Jun 2021 • 12 Fuel-ups

    Property of moose57

  • 16.3 Avg MPG
  • 2021 Sierra Denali HD

    2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Dec 2020 • 36 Fuel-ups

    Property of LynnE24

  • 14.0 Avg MPG
  • My Sierra 2500 HD

    2021 GMC Sierra 2500 HD SLT 6.6L V8 GAS Automatic 6 Speed
    Added Mar 2021 • 7 Fuel-ups

    Property of Gordy86

  • 14.5 Avg MPG
  • 2021 2500HD Denali

    2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Apr 2021 • 27 Fuel-ups

    Property of DP68

  • 16.4 Avg MPG
  • My Sierra 2500 HD

    2021 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
    Added Mar 2021 • 29 Fuel-ups

    Property of penaf71

  • 10.7 Avg MPG
  • 2021 GMC

    2021 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
    Added Mar 2021 • 43 Fuel-ups

    Property of tishma09

  • 9.4 Avg MPG
  • 2021 GMC Sierra 2500 HD

    2021 GMC Sierra 2500 HD 6.6L V8 GAS Automatic 6 Speed
    Added Mar 2021 • 14 Fuel-ups

    Property of Hay_Man_40

  • 12.1 Avg MPG
  • My Sierra 2500 HD

    2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Dec 2020 • 33 Fuel-ups

    Property of russellruetz

  • 14.0 Avg MPG
  • 2021 AT4

    2021 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Jan 2021 • 27 Fuel-ups

    Property of TGriffi1

  • 15.8 Avg MPG
  • My Sierra 2500 HD

    2021 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
    Added Jun 2021 • 22 Fuel-ups

    Property of xETERNALx

  • 12.0 Avg MPG
  • 2021 Sierra Denali HD

    2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Feb 2021 • 28 Fuel-ups

    Property of ccc2511

  • 15.9 Avg MPG
  • Sierra 2500 HD aka Riptide

    2021 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
    Added May 2021 • 19 Fuel-ups

    Property of Ryot

  • 12.0 Avg MPG
  • 2021 GMC Sierra 2500 Denali

    2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Feb 2021 • 13 Fuel-ups

    Property of WydOpen

  • 15.2 Avg MPG
  • AT4 Whore

    2021 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
    Added Mar 2021 • 29 Fuel-ups

    Property of pigpen23

  • 11.8 Avg MPG
  • My Sierra 2500 HD

    2021 GMC Sierra 2500 HD Denali 6.6L V8 GAS Automatic 6 Speed
    Added Aug 2021 • 7 Fuel-ups

    Property of drjim

  • 13.4 Avg MPG
  • My Sierra 2500 HD

    2021 GMC Sierra 2500 HD AT4 6.6L V8 GAS Automatic 6 Speed
    Added Jun 2021 • 37 Fuel-ups

    Property of gregnola

  • 12.2 Avg MPG

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from other GMC Sierra 2500 HD vehicles (View All)

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