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2021 GMC Sierra 1500 MPG

Based on data from 242 vehicles, 16,441 fuel-ups and 6,236,967 miles of driving, the 2021 GMC Sierra 1500 gets a combined Avg MPG of 20.27 with a 0.09 MPG margin of error.

Below you can see a distribution of the fuel-ups with 87 outliers (0.53%) removed.

Following shows the average MPG of each of the 242 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 • 92 Fuel-ups

    Property of njaybong

  • 24.9 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
    Added Apr 2021 • 84 Fuel-ups

    Property of joh02051

  • 19.3 Avg MPG
  • Sierra

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Apr 2023 • 11 Fuel-ups

    Property of shiftracer247

  • 19.9 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Apr 2021 • 63 Fuel-ups

    Property of titan1727

  • 17.6 Avg MPG
  • A19639 2021 Black Sierra 1500

    2021 GMC Sierra 1500 Elevation 2.7L L4 GAS Automatic 10 Speed
    Added Mar 2023 • 17 Fuel-ups

    Property of Robbo1968

  • 6.5 Avg MPG
  • AT4

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Apr 2021 • 52 Fuel-ups

    Property of jbainton

  • 24.2 Avg MPG
  • Old

    2021 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added May 2021 • 123 Fuel-ups

    Property of cdean72

  • 14.2 Avg MPG
  • 21 Sierra

    2021 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 10 Speed Crew Cab Pickup
    Added Nov 2020 • 84 Fuel-ups

    Property of wildman22john

  • 15.6 Avg MPG
  • 2021 Sierra 1500

    2021 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 10 Speed
    Added Dec 2020 • 70 Fuel-ups

    Property of bennybeat

  • 17.0 Avg MPG
  • Blue

    2021 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Jan 2022 • 32 Fuel-ups

    Property of gregair310

  • 24.5 Avg MPG
  • My Sierra 1500 AT4

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Sep 2021 • 50 Fuel-ups

    Property of robtwillis

  • 18.3 Avg MPG
  • 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

Recent Activity

from other GMC Sierra 1500 vehicles (View All)

Tips

Fuel Additives

Add 5 ml benzene based additive to every liter of fuel, mpg ... ...

by Jetman_007

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