Click here to see important news regarding the aCar App

2020 GMC Sierra 1500 MPG

Based on data from 192 vehicles, 15,640 fuel-ups and 5,155,451 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 (2.19%) 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 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Jan 2023 • 18 Fuel-ups

    Property of MotorBoater

  • 25.8 Avg MPG
  • 2020 Sierra

    2020 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 10 Speed Crew Cab Pickup
    Added Sep 2020 • 112 Fuel-ups

    Property of wvajeff

  • 15.8 Avg MPG
  • Big Gray

    2020 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 8 Speed
    Added Oct 2020 • 91 Fuel-ups

    Property of wirowek

  • 23.7 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 10 Speed
    Added Oct 2021 • 53 Fuel-ups

    Property of nightstick320

  • 19.7 Avg MPG
  • Denna

    2020 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
    Added Dec 2020 • 90 Fuel-ups

    Property of knightbsandy

  • 24.3 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 Elevation 2.7L L4 GAS Automatic 8 Speed
    Added Oct 2020 • 48 Fuel-ups

    Property of dphillippe

  • 20.1 Avg MPG
  • 2020 Sierra - Towing

    2020 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Aug 2020 • 31 Fuel-ups

    Property of Rexpelagi

  • 19.4 Avg MPG
  • 2020 GMC Sierra 1500 AT4

    2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added May 2020 • 94 Fuel-ups

    Property of blkcheech

  • 16.8 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
    Added Aug 2020 • 46 Fuel-ups

    Property of willyihts

  • 23.7 Avg MPG
  • Iron

    2020 GMC Sierra 1500 Elevation 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Apr 2020 • 68 Fuel-ups

    Property of andyh1

  • 23.8 Avg MPG
  • GMC Sierra

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Feb 2021 • 13 Fuel-ups

    Property of Larsan90

  • 24.8 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Sep 2020 • 54 Fuel-ups

    Property of shawsvale

  • 17.0 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Sep 2020 • 171 Fuel-ups

    Property of ImpRoma

  • 18.6 Avg MPG
  • Duramax 3.0 on 34’s

    2020 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
    Added Sep 2020 • 31 Fuel-ups

    Property of thechadwickk

  • 22.5 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Mar 2022 • 12 Fuel-ups

    Property of JMcCabe

  • 19.1 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Feb 2021 • 55 Fuel-ups

    Property of Nailer18

  • 22.4 Avg MPG
  • Sierra SLT

    2020 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
    Added Aug 2020 • 40 Fuel-ups

    Property of PtownVdub

  • 22.3 Avg MPG
  • 2020 GMC

    2020 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed
    Added Feb 2020 • 70 Fuel-ups

    Property of garretn

  • 18.0 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
    Added Feb 2020 • 39 Fuel-ups

    Property of TheCrazyLudwig

  • 24.1 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 Elevation 2.7L L4 GAS Automatic 8 Speed
    Added Feb 2022 • 5 Fuel-ups

    Property of robbycruz52

  • 19.1 Avg MPG

Recent Activity

from other GMC Sierra 1500 vehicles (View All)

Tips

SmartPhone m.fuelly.com

You can save a bookmark on your smartphone. m.fuelly.com It makes it easy to log your fuelup.

by tommyz

Read more tips