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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

  • Sierra

    2021 GMC Sierra 1500 Elevation 5.3L V8 GAS Automatic 8 Speed
    Added Oct 2021 • 127 Fuel-ups

    Property of avaag

  • 15.9 Avg MPG
  • Sierra SLT

    2021 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Aug 2021 • 34 Fuel-ups

    Property of Toolmandbq

  • 14.4 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Aug 2021 • 50 Fuel-ups

    Property of fuzz26

  • 19.9 Avg MPG
  • Rudy

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Jan 2022 • 60 Fuel-ups

    Property of jacyna

  • 18.4 Avg MPG
  • GMC A19636 01 2023

    2021 GMC Sierra 1500 Elevation 2.7L L4 GAS Automatic 10 Speed
    Added Jan 2023 • 24 Fuel-ups

    Property of Robbo1968

  • 16.0 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 10 Speed
    Added Sep 2021 • 207 Fuel-ups

    Property of jblomseth

  • 17.1 Avg MPG
  • 2021 AT4

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Feb 2023 • 29 Fuel-ups

    Property of elowx

  • 22.5 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 Elevation 5.3L V8 GAS Automatic 8 Speed
    Added Sep 2022 • 22 Fuel-ups

    Property of Rackumrack

  • 15.1 Avg MPG
  • My Sierra 1500

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

    Property of jayp61

  • 26.1 Avg MPG
  • 2021 GMC

    2021 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
    Added Aug 2021 • 36 Fuel-ups

    Property of creso

  • 19.2 Avg MPG
  • 2021 GMC Sierra 1500 AT4

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Jan 2021 • 96 Fuel-ups

    Property of rotorslap

  • 20.7 Avg MPG
  • GMC Sierra 1500 Duramax

    2021 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Jul 2021 • 54 Fuel-ups

    Property of jshodges-tx

  • 21.2 Avg MPG
  • GMC

    2021 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Dec 2021 • 99 Fuel-ups

    Property of msgraves33

  • 19.4 Avg MPG
  • 2021 White Sierra 1500

    2021 GMC Sierra 1500 Elevation 2.7L L4 GAS Automatic 10 Speed
    Added Dec 2022 • 9 Fuel-ups

    Property of Robbo1968

  • 16.8 Avg MPG
  • 2021 Sierra 1500

    2021 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 10 Speed
    Added May 2021 • 53 Fuel-ups

    Property of Mikecompton

  • 15.7 Avg MPG
  • Sierra 1500

    2021 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added May 2022 • 34 Fuel-ups

    Property of SeanLewis10

  • 15.3 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
    Added Apr 2022 • 20 Fuel-ups

    Property of Camstyn

  • 27.4 Avg MPG
  • 2021 GMC Denali

    2021 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Feb 2022 • 27 Fuel-ups

    Property of abose

  • 26.3 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
    Added Jan 2022 • 48 Fuel-ups

    Property of scubaking69

  • 22.0 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed
    Added Nov 2021 • 21 Fuel-ups

    Property of pgsports

  • 13.8 Avg MPG

Recent Activity

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