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2020 GMC Sierra 3500 HD MPG

Based on data from 18 vehicles, 303 fuel-ups and 111,761 miles of driving, the 2020 GMC Sierra 3500 HD gets a combined Avg MPG of 13.71 with a 0.44 MPG margin of error.

Below you can see a distribution of the fuel-ups with 25 outliers (7.62%) removed.

Following shows the average MPG of each of the 18 vehicles in the system.

2020 GMC Sierra 3500 HDs For Sale Nearby

  • Dee 3500 HD

    2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Mar 2020 • 55 Fuel-ups

    Property of deewhite

  • 13.2 Avg MPG
  • My Sierra 3500 HD

    2020 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed
    Added Jul 2020 • 22 Fuel-ups

    Property of abartlett

  • 12.9 Avg MPG
  • 2020 GMC 3500 HD

    2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Mar 2020 • 43 Fuel-ups

    Property of Gassy1976

  • 14.0 Avg MPG
  • My Sierra 3500 HD

    2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added May 2020 • 6 Fuel-ups

    Property of wedgie321

  • 10.7 Avg MPG
  • Summit White GMC

    2020 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed
    Added Oct 2020 • 4 Fuel-ups

    Property of BrightWhiteCummins

  • 12.0 Avg MPG
  • My Sierra 3500 HD

    2020 GMC Sierra 3500 HD Denali 6.6L V8 GAS Automatic 6 Speed
    Added Jul 2020 • 11 Fuel-ups

    Property of jdmich

  • 9.1 Avg MPG
  • My Denali

    2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Mar 2020 • 22 Fuel-ups

    Property of cmayfield682

  • 16.3 Avg MPG
  • Damon’s Sierra 3500 HD Denali

    2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Feb 2020 • 39 Fuel-ups

    Property of Demon2JZ

  • 12.4 Avg MPG
  • My Sierra 3500 HD

    2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Jul 2020 • 15 Fuel-ups

    Property of hotsauce8815

  • 11.6 Avg MPG
  • My Sierra 3500 HD

    2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Jan 2020 • 30 Fuel-ups

    Property of spence8870

  • 16.3 Avg MPG
  • My Sierra 3500 HD

    2020 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed
    Added Mar 2020 • 19 Fuel-ups

    Property of freedom2020

  • 20.5 Avg MPG
  • Becca

    2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Jan 2020 • 6 Fuel-ups

    Property of Gunslinger4

  • 16.5 Avg MPG
  • AT 4 3500 HD

    2020 GMC Sierra 3500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
    Added Sep 2020 • 7 Fuel-ups

    Property of Jeferon1

  • 10.0 Avg MPG
  • My Sierra 3500 HD

    2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Jun 2020 • 19 Fuel-ups

    Property of fox454

  • 15.2 Avg MPG
  • 3500

    2020 GMC Sierra 3500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
    Added Nov 2019 • 38 Fuel-ups

    Property of rufus28

  • 18.2 Avg MPG
  • My Sierra 3500 HD

    2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Mar 2020 • 3 Fuel-ups

    Property of Blueyfella

  • 15.0 Avg MPG
  • The PEARL

    2020 GMC Sierra 3500 HD Denali
    Added Aug 2019 • 28 Fuel-ups

    Property of bnoot

  • 15.0 Avg MPG
  • My Sierra 3500 HD

    2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
    Added Jan 2020 • 7 Fuel-ups

    Property of Alec55

  • 14.0 Avg MPG

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from other GMC Sierra 3500 HD vehicles (View All)

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