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2020 GMC Sierra 2500 HD MPG

Based on data from 45 vehicles, 3,001 fuel-ups and 1,106,120 miles of driving, the 2020 GMC Sierra 2500 HD gets a combined Avg MPG of 14.29 with a 0.13 MPG margin of error.

Below you can see a distribution of the fuel-ups with 27 outliers (0.89%) removed.

Following shows the average MPG of each of the 45 vehicles in the system.

2020 GMC Sierra 2500 HDs For Sale Nearby

  • Neil GMC 2500HD

    2020 GMC Sierra 2500 HD SLE 6.6L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Nov 2020 • 242 Fuel-ups

    Property of neilalvares

  • 13.5 Avg MPG
  • Sierra 2500 HD

    2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Mar 2020 • 76 Fuel-ups

    Property of bto71

  • 14.3 Avg MPG
  • GMC AT4

    2020 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
    Added Jun 2022 • 85 Fuel-ups

    Property of furlofoder

  • 13.0 Avg MPG
  • My Sierra 2500 HD

    2020 GMC Sierra 2500 HD SLE 6.6L V8 GAS Automatic 6 Speed
    Added Mar 2022 • 148 Fuel-ups

    Property of hoodsh

  • 14.2 Avg MPG
  • My Denali 2500 HD

    2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Dec 2022 • 10 Fuel-ups

    Property of fasdon

  • 11.0 Avg MPG
  • My Sierra 2500 HD

    2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Aug 2023 • 40 Fuel-ups

    Property of rlsudlow

  • 15.0 Avg MPG
  • COVID Cruiser

    2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Mar 2020 • 217 Fuel-ups

    Property of jambiefsj

  • 16.7 Avg MPG
  • Pimpin AT4

    2020 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
    Added Aug 2023 • 17 Fuel-ups

    Property of cdizzle

  • 13.4 Avg MPG
  • 2020 Denali 2500 HD

    2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Jun 2020 • 140 Fuel-ups

    Property of maaiman

  • 16.0 Avg MPG
  • Gallo Negro

    2020 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
    Added May 2022 • 22 Fuel-ups

    Property of doakman1

  • 10.0 Avg MPG
  • Granite AT4

    2020 GMC Sierra 2500 HD AT4 6.6L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Oct 2020 • 169 Fuel-ups

    Property of NHATC

  • 11.3 Avg MPG
  • My Sierra 2500 HD

    2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Aug 2022 • 64 Fuel-ups

    Property of jeepin13

  • 14.6 Avg MPG
  • AT4

    2020 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
    Added Jul 2022 • 91 Fuel-ups

    Property of Dziuky

  • 16.9 Avg MPG
  • 2020 Sierra 2500 Duramax

    2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Dec 2019 • 258 Fuel-ups

    Property of mnoland2000

  • 13.1 Avg MPG
  • My Sierra 2500 HD

    2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Jan 2020 • 104 Fuel-ups

    Property of zardoz5

  • 14.4 Avg MPG
  • 2020 Dmax

    2020 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Apr 2024 • 9 Fuel-ups

    Property of Bigboydmax

  • 13.4 Avg MPG
  • Sierra 2500 HD

    2020 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
    Added Feb 2024 • 16 Fuel-ups

    Property of tdbreeding

  • 12.6 Avg MPG
  • ‘Nali

    2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Jul 2023 • 40 Fuel-ups

    Property of raulserrano

  • 17.7 Avg MPG
  • My Sierra 2500 HD

    2020 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
    Added Sep 2020 • 151 Fuel-ups

    Property of Xaositek

  • 16.2 Avg MPG
  • No Greater Love

    2020 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
    Added Nov 2021 • 17 Fuel-ups

    Property of mattjames11

  • 12.5 Avg MPG

Recent Activity

from other GMC Sierra 2500 HD vehicles (View All)

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