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2021 GMC Sierra 1500 MPG

Based on data from 240 vehicles, 14,989 fuel-ups and 5,715,517 miles of driving, the 2021 GMC Sierra 1500 gets a combined Avg MPG of 20.32 with a 0.09 MPG margin of error.

Below you can see a distribution of the fuel-ups with 78 outliers (0.52%) removed.

Following shows the average MPG of each of the 240 vehicles in the system.

2021 GMC Sierra 1500s For Sale Nearby

  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Oct 2023 • 28 Fuel-ups

    Property of stevengross

  • 18.5 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
    Added Jan 2021 • 159 Fuel-ups

    Property of yesubyllib

  • 23.2 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Mar 2021 • 217 Fuel-ups

    Property of ryank880

  • 21.4 Avg MPG
  • Elevation Diesel 2x4

    2021 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Jun 2021 • 109 Fuel-ups

    Property of jcour

  • 29.7 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
    Added May 2021 • 161 Fuel-ups

    Property of jwarner77

  • 24.1 Avg MPG
  • GMC Blackout

    2021 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
    Added Aug 2021 • 113 Fuel-ups

    Property of brockon

  • 20.6 Avg MPG
  • GMC

    2021 GMC Sierra 1500 SLT
    Added Jan 2023 • 74 Fuel-ups

    Property of builder604

  • 16.2 Avg MPG
  • 2021 GMC

    2021 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
    Added Nov 2021 • 200 Fuel-ups

    Property of ahartman

  • 16.5 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Oct 2023 • 54 Fuel-ups

    Property of gdmannjr

  • 16.0 Avg MPG
  • My AT4

    2021 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed
    Added Nov 2023 • 31 Fuel-ups

    Property of subsailor

  • 14.6 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Dec 2020 • 111 Fuel-ups

    Property of bh1703

  • 20.2 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
    Added Nov 2021 • 55 Fuel-ups

    Property of steamroller69633

  • 15.5 Avg MPG
  • 2021 GMC Sierra SLT 1500 4WD

    2021 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
    Added Aug 2023 • 21 Fuel-ups

    Property of blrains706

  • 24.1 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Feb 2021 • 91 Fuel-ups

    Property of mastrodan3rd

  • 17.3 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed
    Added Sep 2023 • 20 Fuel-ups

    Property of MysticMissile4

  • 16.4 Avg MPG
  • Yodha

    2021 GMC Sierra 1500 SLE 2.7L L4 GAS Automatic 8 Speed Extended Cab Pickup
    Added Oct 2021 • 127 Fuel-ups

    Property of YODHA

  • 22.5 Avg MPG
  • GMC AT4

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Jan 2021 • 125 Fuel-ups

    Property of GMCAT4

  • 22.5 Avg MPG
  • Whipp'd

    2021 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
    Added Jun 2021 • 93 Fuel-ups

    Property of DCsells

  • 14.0 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Apr 2021 • 125 Fuel-ups

    Property of tmac30075

  • 16.3 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
    Added Jul 2021 • 195 Fuel-ups

    Property of Luddy

  • 26.3 Avg MPG

Recent Activity

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