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2020 GMC Sierra 1500 MPG

Based on data from 147 vehicles, 6,101 fuel-ups and 2,105,043 miles of driving, the 2020 GMC Sierra 1500 gets a combined Avg MPG of 18.76 with a 0.14 MPG margin of error.

Below you can see a distribution of the fuel-ups with 45 outliers (0.73%) removed.

Following shows the average MPG of each of the 147 vehicles in the system.

2020 GMC Sierra 1500s For Sale Nearby

  • Gmc

    2020 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Apr 2020 • 112 Fuel-ups

    Property of Rustyg23

  • 19.5 Avg MPG
  • 2020 GMC Sierra

    2020 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Aug 2020 • 35 Fuel-ups

    Property of juneau76

  • 24.2 Avg MPG
  • Red Rover

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added May 2020 • 76 Fuel-ups

    Property of wondergeek

  • 22.3 Avg MPG
  • Sierra 1500

    2020 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed
    Added Oct 2020 • 58 Fuel-ups

    Property of pinkdream

  • 16.1 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Nov 2020 • 86 Fuel-ups

    Property of vnatalizio

  • 23.3 Avg MPG
  • Denna

    2020 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
    Added Dec 2020 • 46 Fuel-ups

    Property of knightbsandy

  • 25.4 Avg MPG
  • Sierra 1500 AT4

    2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Aug 2020 • 72 Fuel-ups

    Property of msteiner17

  • 17.0 Avg MPG
  • Sierra

    2020 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed Crew Cab Pickup
    Added Feb 2020 • 94 Fuel-ups

    Property of Bowtie76

  • 14.7 Avg MPG
  • Sierra

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Nov 2020 • 44 Fuel-ups

    Property of Griffith

  • 21.2 Avg MPG
  • 2020 GMC Sierra

    2020 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Sep 2020 • 30 Fuel-ups

    Property of jndelisl

  • 17.2 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Feb 2021 • 35 Fuel-ups

    Property of Nailer18

  • 21.9 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Sep 2020 • 66 Fuel-ups

    Property of mbnereim

  • 16.6 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed
    Added Jan 2020 • 40 Fuel-ups

    Property of TigerDeAnn

  • 17.6 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
    Added Oct 2020 • 45 Fuel-ups

    Property of SRolfe

  • 25.8 Avg MPG
  • AT4

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Aug 2020 • 46 Fuel-ups

    Property of riefej80

  • 20.0 Avg MPG
  • GMC Sierra

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Feb 2021 • 7 Fuel-ups

    Property of Larsan90

  • 25.3 Avg MPG
  • Sierra 1500

    2020 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added May 2020 • 99 Fuel-ups

    Property of Boatman744

  • 16.1 Avg MPG
  • AT4

    2020 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed
    Added Aug 2020 • 57 Fuel-ups

    Property of Mocek

  • 19.6 Avg MPG
  • Duramax

    2020 GMC Sierra 1500 SLE 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Apr 2020 • 68 Fuel-ups

    Property of mattb5150

  • 20.5 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Nov 2020 • 24 Fuel-ups

    Property of rbennett011

  • 13.5 Avg MPG

Recent Activity

from other GMC Sierra 1500 vehicles (View All)

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