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2021 GMC Sierra 1500 MPG

Based on data from 4 vehicles, 13 fuel-ups and 5,772 miles of driving, the 2021 GMC Sierra 1500 gets a combined Avg MPG of 23.57 with a 1.64 MPG margin of error.

Below you can see a distribution of the fuel-ups with 0 outliers (0.00%) removed.

Following shows the average MPG of each of the 4 vehicles in the system.

  • AT4 Duramax

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Nov 2020 • 3 Fuel-ups

    Property of JDE

  • 22.7 Avg MPG
  • Arnold

    2021 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed
    Added Nov 2020 • 4 Fuel-ups

    Property of st333

  • 23.1 Avg MPG
  • My Sierra 1500

    2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
    Added Oct 2020 • 4 Fuel-ups

    Property of Nefariouss

  • 21.3 Avg MPG
  • Mighty Max

    2021 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
    Added Oct 2020 • 9 Fuel-ups

    Property of Bubbalove66

  • 24.6 Avg MPG

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Tips

Oil matters

Select 0W oil and do not fill top line if your engine does n... ...

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