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2021 GMC Sierra 1500 MPG

Based on data from 193 vehicles, 8,083 fuel-ups and 3,034,945 miles of driving, the 2021 GMC Sierra 1500 gets a combined Avg MPG of 20.22 with a 0.13 MPG margin of error.

Below you can see a distribution of the fuel-ups with 28 outliers (0.35%) removed.

Following shows the average MPG of each of the 193 vehicles in the system.

2021 GMC Sierra 1500s For Sale Nearby

  • CarbonPro Denali

    2021 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Jan 2021 • 58 Fuel-ups

    Property of tripleplay18

  • 25.9 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
    Added Dec 2021 • 56 Fuel-ups

    Property of MoeD

  • 24.3 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 10 Speed
    Added May 2021 • 95 Fuel-ups

    Property of bhbdvm

  • 16.0 Avg MPG
  • Whipp'd

    2021 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
    Added Jun 2021 • 47 Fuel-ups

    Property of DCsells

  • 13.5 Avg MPG
  • Clay 2021 Sierra 1500

    2021 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Feb 2021 • 40 Fuel-ups

    Property of chriii

  • 13.4 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
    Added Jan 2021 • 92 Fuel-ups

    Property of yesubyllib

  • 22.6 Avg MPG
  • 2021 AT4

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

    Property of rvckstar

  • 22.1 Avg MPG
  • 2021 Sierra 1500

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Mar 2021 • 107 Fuel-ups

    Property of MWC_64

  • 23.7 Avg MPG
  • GMC Blackout

    2021 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
    Added Aug 2021 • 56 Fuel-ups

    Property of brockon

  • 20.5 Avg MPG
  • Work Black AT4

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Apr 2021 • 127 Fuel-ups

    Property of ChasN5ZXN

  • 22.4 Avg MPG
  • Grey Ghost

    2021 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Feb 2021 • 67 Fuel-ups

    Property of Britbeamer

  • 19.5 Avg MPG
  • 2021 GMC Sierra AT4

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Feb 2021 • 106 Fuel-ups

    Property of JasperAutos

  • 21.5 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added May 2022 • 25 Fuel-ups

    Property of SeanLewis10

  • 15.8 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added May 2021 • 105 Fuel-ups

    Property of cdean72

  • 14.0 Avg MPG
  • Maverick

    2021 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Feb 2021 • 96 Fuel-ups

    Property of mvprealestate

  • 15.6 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
    Added Jun 2021 • 92 Fuel-ups

    Property of tgutwein

  • 24.9 Avg MPG
  • GMC AT4

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Jan 2021 • 65 Fuel-ups

    Property of GMCAT4

  • 23.5 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
    Added Dec 2020 • 158 Fuel-ups

    Property of SilverSully83

  • 25.1 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
    Added May 2021 • 33 Fuel-ups

    Property of crowan43

  • 22.7 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Mar 2021 • 103 Fuel-ups

    Property of ryank880

  • 21.3 Avg MPG

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