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2020 GMC Sierra 1500 MPG

Based on data from 192 vehicles, 15,640 fuel-ups and 5,155,451 miles of driving, the 2020 GMC Sierra 1500 gets a combined Avg MPG of 18.22 with a 0.08 MPG margin of error.

Below you can see a distribution of the fuel-ups with 351 outliers (2.19%) removed.

Following shows the average MPG of each of the 192 vehicles in the system.

2020 GMC Sierra 1500s For Sale Nearby

  • 2020 Sierra Denali

    2020 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
    Added Apr 2023 • 63 Fuel-ups

    Property of gksills

  • 19.4 Avg MPG
  • Sierra 1500

    2020 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
    Added Jun 2020 • 55 Fuel-ups

    Property of Heatdish

  • 24.2 Avg MPG
  • Bandit

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Jul 2023 • 73 Fuel-ups

    Property of bowden

  • 24.2 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
    Added Jan 2024 • 14 Fuel-ups

    Property of Jbonebrake

  • 23.5 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed
    Added Oct 2020 • 223 Fuel-ups

    Property of Kurrirra

  • 15.6 Avg MPG
  • 2020 GMC Sierra 1500 Denali

    2020 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
    Added Jun 2020 • 90 Fuel-ups

    Property of sk83

  • 22.5 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
    Added Apr 2022 • 58 Fuel-ups

    Property of gcoil

  • 23.3 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Aug 2023 • 7 Fuel-ups

    Property of Doc31

  • 19.4 Avg MPG
  • Sierra 1500 AT4

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Apr 2020 • 96 Fuel-ups

    Property of jjuppyh

  • 22.5 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
    Added Mar 2022 • 77 Fuel-ups

    Property of Mazerk

  • 24.6 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
    Added Oct 2020 • 143 Fuel-ups

    Property of SRolfe

  • 25.4 Avg MPG
  • 2020 GMC Sierra

    2020 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Aug 2020 • 120 Fuel-ups

    Property of juneau76

  • 24.7 Avg MPG
  • Sierra AT4

    2020 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed
    Added Feb 2023 • 69 Fuel-ups

    Property of kdavismt

  • 15.2 Avg MPG
  • Sierra

    2020 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed Crew Cab Pickup
    Added Feb 2020 • 249 Fuel-ups

    Property of Bowtie76

  • 14.4 Avg MPG
  • Sierra

    2020 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
    Added Feb 2024 • 57 Fuel-ups

    Property of nick8924

  • 15.6 Avg MPG
  • 2020 Denali

    2020 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed
    Added Sep 2023 • 22 Fuel-ups

    Property of dirtymoe77

  • 15.1 Avg MPG
  • Red Rover

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added May 2020 • 163 Fuel-ups

    Property of wondergeek

  • 21.6 Avg MPG
  • 2020 GMC AT4

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Mar 2023 • 31 Fuel-ups

    Property of Risser

  • 24.4 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
    Added May 2020 • 31 Fuel-ups

    Property of protouring

  • 22.1 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 10 Speed
    Added Oct 2023 • 11 Fuel-ups

    Property of FarmboyFresh100

  • 26.7 Avg MPG

Recent Activity

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