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2018 GMC Sierra 3500 HD MPG

Based on data from 27 vehicles, 2,100 fuel-ups and 681,666 miles of driving, the 2018 GMC Sierra 3500 HD gets a combined Avg MPG of 12.11 with a 0.17 MPG margin of error.

Below you can see a distribution of the fuel-ups with 10 outliers (0.47%) removed.

Following shows the average MPG of each of the 27 vehicles in the system.

2018 GMC Sierra 3500 HDs For Sale Nearby

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  • 2018 Max

    2018 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Dec 2017 • 93 Fuel-ups

    Property of broit

  • 12.7 Avg MPG
  • My Sierra 3500 HD

    2018 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Mar 2019 • 4 Fuel-ups

    Property of mps446

  • 14.3 Avg MPG
  • My Sierra 3500 HD

    2018 GMC Sierra 3500 HD Denali 6.0L V8 FLEX Automatic 6 Speed
    Added Apr 2018 • 14 Fuel-ups

    Property of dogspike

  • 14.2 Avg MPG
  • My Sierra 3500 HD

    2018 GMC Sierra 3500 HD 6.6L V8 DIESEL Automatic 6 Speed
    Added Apr 2020 • 6 Fuel-ups

    Property of dboyznme

  • 14.8 Avg MPG
  • My Sierra 3500 HD

    2018 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Nov 2017 • 31 Fuel-ups

    Property of mcumbie

  • 10.9 Avg MPG
  • 2018 Sierra Denali HD

    2018 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Apr 2018 • 5 Fuel-ups

    Property of TrevorR_EcoDiesel

  • 11.2 Avg MPG
  • My Sierra 3500 HD

    2018 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Dec 2017 • 3 Fuel-ups

    Property of spudman00

  • 17.0 Avg MPG
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