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2008 GMC Sierra 2500 HD MPG

Based on data from 95 vehicles, 11,373 fuel-ups and 2,865,602 miles of driving, the 2008 GMC Sierra 2500 HD gets a combined Avg MPG of 14.24 with a 0.06 MPG margin of error.

Below you can see a distribution of the fuel-ups with 508 outliers (4.28%) removed.

Following shows the average MPG of each of the 95 vehicles in the system.

2008 GMC Sierra 2500 HDs For Sale Nearby

  • 08 GMC TRUCK

    2008 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
    Added Apr 2022 • 91 Fuel-ups

    Property of denkerb

  • 13.7 Avg MPG
  • My Sierra 2500 HD

    2008 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 6 Speed
    Added Sep 2023 • 33 Fuel-ups

    Property of HaydenH1996

  • 11.0 Avg MPG
  • GMC 2500HD

    2008 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Sep 2016 • 280 Fuel-ups

    Property of LawMan02

  • 14.8 Avg MPG
  • Monster Gray

    2008 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Apr 2011 • 459 Fuel-ups

    Property of HarrisQ

  • 13.5 Avg MPG
  • My Sierra 2500 HD

    2008 GMC Sierra 2500 HD WT 6.6L V8 DIESEL Automatic 6 Speed
    Added Aug 2018 • 551 Fuel-ups

    Property of Nawem

  • 14.0 Avg MPG
  • My Sierra 2500 HD

    2008 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
    Added Apr 2017 • 366 Fuel-ups

    Property of NohrZ71

  • 12.2 Avg MPG
  • Duramax

    2008 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Nov 2021 • 138 Fuel-ups

    Property of WatchSquid

  • 15.2 Avg MPG
  • 2500 HD

    2008 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Aug 2024 • 7 Fuel-ups

    Property of Modtechteam

  • 12.6 Avg MPG
  • Chris GMC Sierra 2500

    2008 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
    Added Mar 2017 • 660 Fuel-ups

    Property of cshotmix

  • 15.6 Avg MPG
  • My Sierra 2500 HD

    2008 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Apr 2024 • 23 Fuel-ups

    Property of Erick85

  • 15.4 Avg MPG
  • 08 Sierra 2500HD LMM

    2008 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
    Added Nov 2021 • 173 Fuel-ups

    Property of KHK1

  • 13.2 Avg MPG
  • My Sierra 2500 HD

    2008 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
    Added Oct 2021 • 192 Fuel-ups

    Property of jasonandcourtney

  • 13.4 Avg MPG
  • 346-15

    2008 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Mar 2023 • 17 Fuel-ups

    Property of Brandon-Lawrence

  • 6.4 Avg MPG
  • Sierra

    2008 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Mar 2021 • 68 Fuel-ups

    Property of tibrin

  • 11.9 Avg MPG
  • Gmc Sierra 2008

    2008 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Nov 2024 • 36 Fuel-ups

    Property of eeb01

  • 14.5 Avg MPG
  • My Sierra 2500 HD

    2008 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Nov 2021 • 114 Fuel-ups

    Property of Niftydura

  • 15.0 Avg MPG
  • My Sierra 2500 HD

    2008 GMC Sierra 2500 HD SLT 6.0L V8 GAS Automatic 6 Speed
    Added Aug 2022 • 70 Fuel-ups

    Property of PaigeC

  • 12.6 Avg MPG
  • 2008 GMC

    2008 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
    Added Feb 2020 • 141 Fuel-ups

    Property of Maverick99

  • 16.5 Avg MPG
  • 2008 GMC Sierra 2500 HD SLE

    2008 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed Extended Crew Cab Pickup
    Added Jun 2019 • 82 Fuel-ups

    Property of jeff801

  • 12.9 Avg MPG
  • My Sierra 2500 HD

    2008 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Mar 2023 • 14 Fuel-ups

    Property of gregcg

  • 14.2 Avg MPG

Recent Activity

from other GMC Sierra 2500 HD vehicles (View All)

Tips

Lighter engine oil for better mileage? or more power?

Not from my experience (as a master tech for over 40 years),... ...

by billtech66

Read more tips