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2020 GMC Sierra MPG

Based on data from 2 vehicles, 60 fuel-ups and 23,607 miles of driving, the 2020 GMC Sierra gets a combined Avg MPG of 15.30 with a 0.66 MPG margin of error.

Below you can see a distribution of the fuel-ups with 4 outliers (6.25%) removed.

Following shows the average MPG of each of the 2 vehicles in the system.

2020 GMC Sierras For Sale Nearby

  • 2020 Sierra

    2020 GMC Sierra AT4
    Added Dec 2019 • 39 Fuel-ups

    Property of Mikemjr1

  • 16.5 Avg MPG
  • Garrett’s Truck

    2020 GMC Sierra AT4 5.3L V8 GAS Automatic 8 Speed
    Added Dec 2019 • 33 Fuel-ups

    Property of GMEAUX

  • 17.4 Avg MPG

Recent Activity

from other GMC Sierra vehicles (View All)


Walk a little

I often see people driving round shopping precinct car parks... ...

by SwissJon

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