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2020 GMC Sierra 1500 MPG

Based on data from 192 vehicles, 15,612 fuel-ups and 5,146,299 miles of driving, the 2020 GMC Sierra 1500 gets a combined Avg MPG of 18.22 with a 0.08 MPG margin of error.

Below you can see a distribution of the fuel-ups with 350 outliers (2.19%) removed.

Following shows the average MPG of each of the 192 vehicles in the system.

2020 GMC Sierra 1500s For Sale Nearby

  • Sierra

    2020 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 8 Speed
    Added Jan 2020 • 221 Fuel-ups

    Property of nalani83

  • 14.9 Avg MPG
  • 2020 GMC Sierra

    2020 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Sep 2020 • 170 Fuel-ups

    Property of jndelisl

  • 17.2 Avg MPG
  • 2020 Sierra 1500 AT4

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Sep 2020 • 134 Fuel-ups

    Property of jhhaney97

  • 23.8 Avg MPG
  • Sierra 1500 SLT

    2020 GMC Sierra 1500 SLT
    Added Jan 2020 • 423 Fuel-ups

    Property of bdenman

  • 19.1 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Oct 2020 • 169 Fuel-ups

    Property of mcginnmf16

  • 15.2 Avg MPG
  • Leonardo Denali

    2020 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
    Added Feb 2023 • 82 Fuel-ups

    Property of Bippin

  • 15.1 Avg MPG
  • GMC Sierra 1500 AT4

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Jul 2020 • 187 Fuel-ups

    Property of Knoname

  • 20.1 Avg MPG
  • AT4

    2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Jul 2020 • 208 Fuel-ups

    Property of JW46

  • 16.4 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 5.3L V8 GAS Automatic 6 Speed
    Added Aug 2020 • 145 Fuel-ups

    Property of brianjadams

  • 14.9 Avg MPG
  • 2020 Sierra 1500

    2020 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
    Added Aug 2020 • 178 Fuel-ups

    Property of msova2

  • 15.4 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Feb 2023 • 123 Fuel-ups

    Property of jwbraam3

  • 16.3 Avg MPG
  • Sierra 1500 AT4

    2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Aug 2020 • 245 Fuel-ups

    Property of msteiner17

  • 17.0 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Jun 2021 • 89 Fuel-ups

    Property of weedtrucker

  • 25.3 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
    Added Sep 2023 • 73 Fuel-ups

    Property of tylerbell

  • 16.9 Avg MPG
  • Sierra

    2020 GMC Sierra 1500 Elevation
    Added Nov 2019 • 292 Fuel-ups

    Property of nightrock548

  • 17.3 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Oct 2020 • 174 Fuel-ups

    Property of surfintx2004

  • 19.9 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 10 Speed
    Added Jun 2022 • 128 Fuel-ups

    Property of nicktcr

  • 19.4 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Jul 2023 • 54 Fuel-ups

    Property of roadwarrior51

  • 17.8 Avg MPG
  • AT4

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Aug 2020 • 171 Fuel-ups

    Property of riefej80

  • 19.9 Avg MPG
  • Maxine

    2020 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
    Added Aug 2020 • 217 Fuel-ups

    Property of ItsMine

  • 24.0 Avg MPG

Recent Activity

from other GMC Sierra 1500 vehicles (View All)

Tips

Drive-thru idling

While stopped in the drive thru (whether there is a line or ... ...

by Hawkraptor

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