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2018 GMC Sierra 3500 HD MPG

Based on data from 23 vehicles, 1,002 fuel-ups and 305,614 miles of driving, the 2018 GMC Sierra 3500 HD gets a combined Avg MPG of 11.81 with a 0.25 MPG margin of error.

Below you can see a distribution of the fuel-ups with 4 outliers (0.40%) removed.

Following shows the average MPG of each of the 23 vehicles in the system.

2018 GMC Sierra 3500 HDs For Sale Nearby

  • Sierra 3500 HD

    2018 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Nov 2017 • 112 Fuel-ups

    Property of jamesnkerr

  • 14.1 Avg MPG
  • My Sierra 3500 HD

    2018 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Jul 2020 • 9 Fuel-ups

    Property of tortuga99

  • 4.8 Avg MPG
  • GMC Sierra 3500HD

    2018 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Aug 2019 • 79 Fuel-ups

    Property of pputney

  • 12.0 Avg MPG
  • Tow Pig

    2018 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Aug 2018 • 136 Fuel-ups

    Property of Robicus

  • 14.2 Avg MPG
  • Sierra 3500 HD RV Hauler

    2018 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Mar 2020 • 57 Fuel-ups

    Property of Derril

  • 11.5 Avg MPG
  • Big Elmo

    2018 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Jan 2018 • 91 Fuel-ups

    Property of Geodude

  • 11.0 Avg MPG
  • Great White L5P

    2018 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Sep 2018 • 48 Fuel-ups

    Property of 2manyliters

  • 13.7 Avg MPG
  • GMC 3500

    2018 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Dec 2017 • 47 Fuel-ups

    Property of Peterbuilt75

  • 11.1 Avg MPG
  • Denali

    2018 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Jun 2018 • 33 Fuel-ups

    Property of suasman

  • 15.0 Avg MPG
  • GMC Sierra 3500 HD

    2018 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Sep 2017 • 73 Fuel-ups

    Property of amtrak8

  • 12.8 Avg MPG
  • My Sierra 3500 HD

    2018 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Sep 2018 • 155 Fuel-ups

    Property of brizgislawrencej

  • 13.0 Avg MPG
  • CB Denali

    2018 GMC Sierra 3500 HD Denali 6.0L V8 FLEX Automatic 6 Speed
    Added Jul 2019 • 11 Fuel-ups

    Property of KTBHDH

  • 9.2 Avg MPG
  • My Sierra 3500 HD

    2018 GMC Sierra 3500 HD 6.6L V8 DIESEL Automatic 6 Speed
    Added Jul 2018 • 47 Fuel-ups

    Property of skinnertonoutlaw

  • 8.7 Avg MPG
  • Denali 3500 DWR

    2018 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Jul 2018 • 13 Fuel-ups

    Property of Ncrzrbk

  • 14.9 Avg MPG
  • 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
  • Sierra

    2018 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Jan 2018 • 50 Fuel-ups

    Property of artman1913

  • 10.8 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
  • DEF

    2018 GMC Sierra 3500 HD SLT Automatic 6 Speed
    Added Mar 2018 • 5 Fuel-ups

    Property of artman1913

  • 476.2 Avg MPG

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