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2021 GMC Sierra 1500 MPG

Based on data from 250 vehicles, 17,775 fuel-ups and 6,779,747 miles of driving, the 2021 GMC Sierra 1500 gets a combined Avg MPG of 20.33 with a 0.08 MPG margin of error.

Below you can see a distribution of the fuel-ups with 92 outliers (0.51%) removed.

Following shows the average MPG of each of the 250 vehicles in the system.

2021 GMC Sierra 1500s For Sale Nearby

  • My Sierra 1500

    2021 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 10 Speed
    Added Jan 2022 • 29 Fuel-ups

    Property of jmdunleavy

  • 16.2 Avg MPG
  • 21 GMC Elevation 3.0 Duramax

    2021 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
    Added Sep 2021 • 133 Fuel-ups

    Property of jkluge

  • 24.6 Avg MPG
  • Sasquatch Hunter

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Aug 2021 • 47 Fuel-ups

    Property of Aldrummond

  • 20.5 Avg MPG
  • Denali green

    2021 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
    Added Jul 2022 • 21 Fuel-ups

    Property of travelingman1

  • 22.9 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
    Added Oct 2021 • 41 Fuel-ups

    Property of us244938

  • 24.7 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Apr 2021 • 44 Fuel-ups

    Property of Frayed_Ends

  • 22.0 Avg MPG
  • GMC Black 11 2021

    2021 GMC Sierra 1500 Elevation 2.7L L4 GAS Automatic 10 Speed
    Added Nov 2021 • 64 Fuel-ups

    Property of Robbo1968

  • 17.5 Avg MPG
  • 21 Sierra 1500

    2021 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
    Added Apr 2021 • 52 Fuel-ups

    Property of thekevin

  • 25.0 Avg MPG
  • MiniMax

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Feb 2021 • 67 Fuel-ups

    Property of cjel23

  • 24.3 Avg MPG
  • My Sierra AT4 1500

    2021 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Apr 2021 • 98 Fuel-ups

    Property of mich1989

  • 15.6 Avg MPG
  • Sierra 1500

    2021 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
    Added Jul 2021 • 44 Fuel-ups

    Property of Mason20

  • 25.3 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
    Added Jul 2021 • 99 Fuel-ups

    Property of John30563

  • 24.0 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Mar 2022 • 13 Fuel-ups

    Property of jesseallenpatterson

  • 22.2 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
    Added May 2022 • 4 Fuel-ups

    Property of Seakuv

  • 32.5 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
    Added Apr 2022 • 7 Fuel-ups

    Property of JohnPro

  • 26.3 Avg MPG
  • Family Truckster

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Mar 2022 • 8 Fuel-ups

    Property of Mtnbound

  • 22.3 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
    Added Feb 2021 • 31 Fuel-ups

    Property of pluc_val

  • 25.1 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Feb 2021 • 45 Fuel-ups

    Property of beech76

  • 22.8 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed
    Added Dec 2020 • 39 Fuel-ups

    Property of michaelm91

  • 14.5 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Jun 2021 • 51 Fuel-ups

    Property of jsetti

  • 23.8 Avg MPG

Recent Activity

from other GMC Sierra 1500 vehicles (View All)

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