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2020 GMC Sierra 1500 MPG

Based on data from 192 vehicles, 15,637 fuel-ups and 5,154,692 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 351 outliers (2.20%) removed.

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

2020 GMC Sierra 1500s For Sale Nearby

  • My Sierra 1500

    2020 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
    Added Apr 2020 • 6 Fuel-ups

    Property of brandonmendoza

  • 21.5 Avg MPG
  • 2020 Sierra 1500 - P391

    2020 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed
    Added Aug 2020 • 17 Fuel-ups

    Property of shatub

  • 14.8 Avg MPG
  • GMC

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Sep 2020 • 4 Fuel-ups

    Property of snowfreak566

  • 18.3 Avg MPG
  • 2020 GMC 3.0 Diesel

    2020 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Jul 2020 • 23 Fuel-ups

    Property of rhbjr81

  • 22.8 Avg MPG
  • Sierra2020 Duramax

    2020 GMC Sierra 1500 SLE 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Mar 2020 • 16 Fuel-ups

    Property of tdidirtbag

  • 25.6 Avg MPG
  • GMC Sierra

    2020 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed Crew Cab Pickup
    Added Apr 2020 • 15 Fuel-ups

    Property of Bradalay

  • 16.6 Avg MPG
  • Sierra 1500 Duramax

    2020 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
    Added Mar 2020 • 14 Fuel-ups

    Property of idlejunk

  • 23.5 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
    Added Mar 2020 • 28 Fuel-ups

    Property of Fischer05

  • 26.5 Avg MPG
  • SuperBlue

    2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
    Added Jun 2020 • 4 Fuel-ups

    Property of nateg20

  • 18.3 Avg MPG
  • GMC Sierra 1500 AT4

    2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
    Added Mar 2020 • 6 Fuel-ups

    Property of jlpiccoli

  • 14.2 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
    Added Mar 2020 • 4 Fuel-ups

    Property of 1XFD4

  • 22.3 Avg MPG
  • Sierra 1500 SLT X31

    2020 GMC Sierra 1500 SLT
    Added Jan 2020 • 5 Fuel-ups

    Property of kkib2

  • 17.9 Avg MPG

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