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2020 GMC Sierra 1500 MPG

Based on data from 157 vehicles, 8,436 fuel-ups and 2,860,078 miles of driving, the 2020 GMC Sierra 1500 gets a combined Avg MPG of 18.58 with a 0.12 MPG margin of error.

Below you can see a distribution of the fuel-ups with 83 outliers (0.97%) removed.

Following shows the average MPG of each of the 157 vehicles in the system.

2020 GMC Sierra 1500s For Sale Nearby

  • My Sierra 1500

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

    Property of nicktcr

  • 18.6 Avg MPG
  • Sierra

    2020 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed Crew Cab Pickup
    Added Feb 2020 • 157 Fuel-ups

    Property of Bowtie76

  • 13.6 Avg MPG
  • AT4

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Dec 2020 • 38 Fuel-ups

    Property of rmsevo

  • 21.6 Avg MPG
  • Big Gray

    2020 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 8 Speed
    Added Oct 2020 • 74 Fuel-ups

    Property of wirowek

  • 23.5 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Apr 2020 • 100 Fuel-ups

    Property of mjp1850

  • 13.9 Avg MPG
  • Sierra

    2020 GMC Sierra 1500 Elevation
    Added Nov 2019 • 113 Fuel-ups

    Property of nightrock548

  • 16.5 Avg MPG
  • 20 Sierra 1500 SLT

    2020 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Sep 2020 • 93 Fuel-ups

    Property of clemmer98

  • 15.8 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Sep 2020 • 109 Fuel-ups

    Property of mbnereim

  • 16.5 Avg MPG
  • Diana’s AT4

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Oct 2020 • 82 Fuel-ups

    Property of dianabass

  • 22.5 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed
    Added Sep 2020 • 108 Fuel-ups

    Property of pauldelicati

  • 13.1 Avg MPG
  • 2020 AT4

    2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Jan 2021 • 44 Fuel-ups

    Property of clo004

  • 15.1 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed
    Added Oct 2020 • 126 Fuel-ups

    Property of Kurrirra

  • 15.9 Avg MPG
  • GMC Sierra

    2020 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed Crew Cab Pickup
    Added Sep 2020 • 70 Fuel-ups

    Property of Bensontbjj1

  • 17.4 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Jul 2022 • 46 Fuel-ups

    Property of jmungaray

  • 13.9 Avg MPG
  • Maxine

    2020 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
    Added Aug 2020 • 107 Fuel-ups

    Property of ItsMine

  • 25.5 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 5.3L V8 GAS Automatic 6 Speed
    Added Aug 2020 • 72 Fuel-ups

    Property of brianjadams

  • 15.4 Avg MPG
  • AT4

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Aug 2020 • 75 Fuel-ups

    Property of riefej80

  • 19.9 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
    Added Jul 2020 • 111 Fuel-ups

    Property of chevyb

  • 16.8 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Jul 2020 • 133 Fuel-ups

    Property of JettaFuelMileage

  • 15.6 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Jul 2022 • 6 Fuel-ups

    Property of A-Aron6

  • 17.8 Avg MPG

Recent Activity

from other GMC Sierra 1500 vehicles (View All)

Tips

Cruse Control

Use cruse control where safe, the car will drive itself more economically than you can.

by David404

Read more tips