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2021 GMC Sierra 1500 MPG

Based on data from 184 vehicles, 6,555 fuel-ups and 2,450,077 miles of driving, the 2021 GMC Sierra 1500 gets a combined Avg MPG of 20.14 with a 0.14 MPG margin of error.

Below you can see a distribution of the fuel-ups with 23 outliers (0.35%) removed.

Following shows the average MPG of each of the 184 vehicles in the system.

2021 GMC Sierra 1500s For Sale Nearby

  • Presious

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Jun 2021 • 60 Fuel-ups

    Property of njaybong

  • 24.3 Avg MPG
  • 2021 GMC

    2021 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
    Added Nov 2021 • 51 Fuel-ups

    Property of ahartman

  • 15.6 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Jul 2021 • 82 Fuel-ups

    Property of AT4-GLI

  • 22.9 Avg MPG
  • 21 GMC Elevation 3.0 Duramax

    2021 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
    Added Sep 2021 • 103 Fuel-ups

    Property of jkluge

  • 24.9 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Mar 2021 • 86 Fuel-ups

    Property of ryank880

  • 21.2 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 10 Speed
    Added Sep 2021 • 107 Fuel-ups

    Property of jblomseth

  • 17.1 Avg MPG
  • Big Blue

    2021 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Jun 2021 • 27 Fuel-ups

    Property of jstokes3

  • 19.9 Avg MPG
  • 2021 AT4

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Sep 2021 • 20 Fuel-ups

    Property of rvckstar

  • 22.7 Avg MPG
  • Reba

    2021 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed
    Added Mar 2021 • 66 Fuel-ups

    Property of voodoochild24

  • 16.3 Avg MPG
  • Sierra

    2021 GMC Sierra 1500 Elevation 5.3L V8 GAS Automatic 8 Speed
    Added Oct 2021 • 75 Fuel-ups

    Property of avaag

  • 16.1 Avg MPG
  • Sierra

    2021 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Jan 2022 • 36 Fuel-ups

    Property of jc9995

  • 25.3 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Sep 2021 • 38 Fuel-ups

    Property of rs4mtnitro

  • 21.3 Avg MPG
  • 2021 Sierra 1500

    2021 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 10 Speed
    Added May 2021 • 38 Fuel-ups

    Property of Mikecompton

  • 15.4 Avg MPG
  • Maverick

    2021 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Feb 2021 • 78 Fuel-ups

    Property of mvprealestate

  • 15.9 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
    Added Dec 2021 • 38 Fuel-ups

    Property of MoeD

  • 24.0 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Mar 2022 • 11 Fuel-ups

    Property of jesseallenpatterson

  • 22.5 Avg MPG
  • QS AT4

    2021 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
    Added May 2022 • 4 Fuel-ups

    Property of jebjkey

  • 18.4 Avg MPG
  • Work Sierra 1500

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Apr 2021 • 105 Fuel-ups

    Property of ChasN5ZXN

  • 22.6 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed
    Added Jun 2021 • 106 Fuel-ups

    Property of jtowns

  • 16.5 Avg MPG
  • Rudy

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Jan 2022 • 37 Fuel-ups

    Property of jacyna

  • 17.8 Avg MPG

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