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2018 GMC Sierra 2500 HD MPG

Based on data from 60 vehicles, 4,783 fuel-ups and 1,808,279 miles of driving, the 2018 GMC Sierra 2500 HD gets a combined Avg MPG of 14.53 with a 0.11 MPG margin of error.

Below you can see a distribution of the fuel-ups with 85 outliers (1.75%) removed.

Following shows the average MPG of each of the 60 vehicles in the system.

2018 GMC Sierra 2500 HDs For Sale Nearby

  • Robin's Truck

    2018 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Mar 2021 • 124 Fuel-ups

    Property of Cruiser60

  • 14.1 Avg MPG
  • 18 Sierra

    2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Jan 2022 • 287 Fuel-ups

    Property of texags06

  • 14.1 Avg MPG
  • Sierra 2500

    2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Nov 2018 • 377 Fuel-ups

    Property of IPAGuy

  • 12.1 Avg MPG
  • My Sierra 2500 HD

    2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Nov 2023 • 26 Fuel-ups

    Property of cmlouis

  • 14.1 Avg MPG
  • GMC AT HD

    2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Jan 2023 • 30 Fuel-ups

    Property of jheen

  • 14.4 Avg MPG
  • 2018 Duramax

    2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Extended Cab Pickup
    Added Nov 2017 • 146 Fuel-ups

    Property of Rocketrollinsx

  • 14.4 Avg MPG
  • My Sierra 2500 HD

    2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Mar 2023 • 80 Fuel-ups

    Property of RandD

  • 14.3 Avg MPG
  • Denali

    2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Nov 2017 • 278 Fuel-ups

    Property of superflymtber

  • 17.1 Avg MPG
  • 18 Duramax

    2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Oct 2023 • 25 Fuel-ups

    Property of peterd55

  • 16.9 Avg MPG
  • My Denali

    2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Mar 2020 • 179 Fuel-ups

    Property of kmh54

  • 14.8 Avg MPG
  • 18 Denali HD

    2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added May 2024 • 28 Fuel-ups

    Property of AeroTerp

  • 12.1 Avg MPG
  • Denali 2500HD

    2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Jan 2018 • 140 Fuel-ups

    Property of Mavis500

  • 15.4 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
  • My Sierra 2500 HD

    2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Jan 2018 • 8 Fuel-ups

    Property of Badheadla

  • 15.3 Avg MPG
  • My Sierra 2500 HD

    2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Nov 2018 • 161 Fuel-ups

    Property of cfort

  • 14.6 Avg MPG
  • My Sierra 2500 HD

    2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Apr 2019 • 305 Fuel-ups

    Property of 4gkids

  • 14.2 Avg MPG
  • Sierra 2500 HD

    2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Oct 2020 • 38 Fuel-ups

    Property of beamsf15e

  • 14.5 Avg MPG
  • My Sierra 2500 HD

    2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added May 2018 • 233 Fuel-ups

    Property of jtw811

  • 14.4 Avg MPG
  • Sierra Denali 2500 HD

    2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Mar 2019 • 144 Fuel-ups

    Property of west27

  • 13.6 Avg MPG
  • GMC

    2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Feb 2021 • 169 Fuel-ups

    Property of csundell

  • 14.0 Avg MPG

Recent Activity

from other GMC Sierra 2500 HD vehicles (View All)

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