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2020 GMC Sierra 1500 MPG

Based on data from 141 vehicles, 4,607 fuel-ups and 1,569,358 miles of driving, the 2020 GMC Sierra 1500 gets a combined Avg MPG of 18.54 with a 0.15 MPG margin of error.

Below you can see a distribution of the fuel-ups with 83 outliers (1.77%) removed.

Following shows the average MPG of each of the 141 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 Crew Cab Pickup
    Added Feb 2021 • 21 Fuel-ups

    Property of Nailer18

  • 22.0 Avg MPG
  • Storm Trooper

    2020 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Feb 2020 • 44 Fuel-ups

    Property of seans

  • 23.5 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 Elevation 2.7L L4 GAS Automatic 8 Speed
    Added Oct 2020 • 15 Fuel-ups

    Property of dphillippe

  • 21.8 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 10 Speed
    Added Jan 2020 • 150 Fuel-ups

    Property of mja2770

  • 15.7 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Oct 2020 • 40 Fuel-ups

    Property of surfintx2004

  • 20.6 Avg MPG
  • Sierra

    2020 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 8 Speed
    Added Jan 2020 • 71 Fuel-ups

    Property of nalani83

  • 14.2 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 SLE 3.0L L6 DIESEL Automatic 10 Speed
    Added Jan 2021 • 45 Fuel-ups

    Property of Mijo123

  • 22.1 Avg MPG
  • AT4

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Dec 2020 • 15 Fuel-ups

    Property of rmsevo

  • 22.2 Avg MPG
  • 2020 GMC Sierra 1500 AT4

    2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added May 2020 • 42 Fuel-ups

    Property of blkcheech

  • 17.1 Avg MPG
  • My Sierra

    2020 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 10 Speed
    Added Aug 2020 • 103 Fuel-ups

    Property of braxx71

  • 18.5 Avg MPG
  • Sierra 1500 AT4

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Apr 2020 • 32 Fuel-ups

    Property of jjuppyh

  • 23.5 Avg MPG
  • Sierra 1500

    2020 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed
    Added Feb 2021 • 25 Fuel-ups

    Property of bmrohrer

  • 15.7 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Jul 2020 • 65 Fuel-ups

    Property of JettaFuelMileage

  • 16.0 Avg MPG
  • Sierra

    2020 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed Crew Cab Pickup
    Added Feb 2020 • 68 Fuel-ups

    Property of Bowtie76

  • 15.2 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 5.3L V8 GAS Automatic 6 Speed
    Added Aug 2020 • 21 Fuel-ups

    Property of brianjadams

  • 14.9 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 Elevation 5.3L V8 GAS Automatic 10 Speed
    Added Aug 2020 • 36 Fuel-ups

    Property of crggmc

  • 15.2 Avg MPG
  • AT4

    2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Aug 2020 • 30 Fuel-ups

    Property of riefej80

  • 20.3 Avg MPG
  • 2020 AT4

    2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Jan 2021 • 13 Fuel-ups

    Property of clo004

  • 15.2 Avg MPG
  • Sierra 1500 SLT

    2020 GMC Sierra 1500 SLT
    Added Jan 2020 • 104 Fuel-ups

    Property of bdenman

  • 20.8 Avg MPG
  • My Sierra 1500

    2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
    Added Sep 2020 • 73 Fuel-ups

    Property of ImpRoma

  • 18.6 Avg MPG

Recent Activity

from other GMC Sierra 1500 vehicles (View All)

Tips

Coasting to save petrol or not

If you are going down hill dont coast by putting in neutral ... ...

by jon1612

Read more tips