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2018 GMC Sierra 2500 HD MPG

Based on data from 50 vehicles, 2,421 fuel-ups and 976,955 miles of driving, the 2018 GMC Sierra 2500 HD gets a combined Avg MPG of 15.05 with a 0.14 MPG margin of error.

Below you can see a distribution of the fuel-ups with 35 outliers (1.43%) removed.

Following shows the average MPG of each of the 50 vehicles in the system.

2018 GMC Sierra 2500 HDs For Sale Nearby

  • My Sierra 2500 HD

    2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Nov 2018 • 48 Fuel-ups

    Property of cfort

  • 14.9 Avg MPG
  • Sierra 2500

    2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Nov 2018 • 118 Fuel-ups

    Property of IPAGuy

  • 12.7 Avg MPG
  • 2018 Sierra Denali HD

    2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Jun 2018 • 105 Fuel-ups

    Property of xstaski

  • 15.1 Avg MPG
  • My Sierra 2500 HD

    2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added May 2020 • 12 Fuel-ups

    Property of tishma09

  • 11.5 Avg MPG
  • My Sierra 2500 HD

    2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added May 2018 • 106 Fuel-ups

    Property of jtw811

  • 14.7 Avg MPG
  • My Sierra 2500 HD

    2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Apr 2019 • 76 Fuel-ups

    Property of 4gkids

  • 14.5 Avg MPG
  • Sierra 2500 HD

    2018 GMC Sierra 2500 HD SLT 6.0L V8 FLEX Automatic 6 Speed
    Added May 2019 • 42 Fuel-ups

    Property of larboy

  • 12.5 Avg MPG
  • Ken’s

    2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Apr 2020 • 10 Fuel-ups

    Property of Cave0369

  • 15.7 Avg MPG
  • GMC Sierra 2500 HD

    2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Jul 2018 • 154 Fuel-ups

    Property of LouLee

  • 15.4 Avg MPG
  • 18 Sierra

    2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Jul 2018 • 124 Fuel-ups

    Property of texags06

  • 14.7 Avg MPG
  • 2018 Sierra Denalli HD

    2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Jan 2018 • 101 Fuel-ups

    Property of LynnE24

  • 15.0 Avg MPG
  • 2018 Sierra Denali HD

    2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Extended Crew Cab Pickup
    Added Dec 2017 • 53 Fuel-ups

    Property of Screagle

  • 16.9 Avg MPG
  • Denali

    2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Dec 2017 • 132 Fuel-ups

    Property of jlawles2

  • 15.9 Avg MPG
  • My Denali

    2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Mar 2020 • 12 Fuel-ups

    Property of kmh54

  • 15.0 Avg MPG
  • Red Tank 15/40

    2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Feb 2018 • 39 Fuel-ups

    Property of jdelfin

  • 15.0 Avg MPG
  • Denali HD

    2018 GMC Sierra 2500 HD Denali 6.0L V8 FLEX Automatic 6 Speed
    Added Jun 2020 • 14 Fuel-ups

    Property of Sullivan907

  • 13.4 Avg MPG
  • Ghost

    2018 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Apr 2018 • 177 Fuel-ups

    Property of cowdoc

  • 18.7 Avg MPG
  • My Sierra 2500 HD

    2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Jun 2018 • 52 Fuel-ups

    Property of Boerklong

  • 15.8 Avg MPG
  • Denali

    2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Nov 2017 • 138 Fuel-ups

    Property of superflymtber

  • 17.5 Avg MPG
  • My Sierra 2500 HD

    2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Jun 2020 • 4 Fuel-ups

    Property of Madodds

  • 15.5 Avg MPG

Recent Activity

from other GMC Sierra 2500 HD vehicles (View All)

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