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2012 GMC Sierra 3500 HD MPG

Based on data from 15 vehicles, 1,311 fuel-ups and 448,233 miles of driving, the 2012 GMC Sierra 3500 HD gets a combined Avg MPG of 13.27 with a 0.20 MPG margin of error.

Below you can see a distribution of the fuel-ups with 56 outliers (4.10%) removed.

Following shows the average MPG of each of the 15 vehicles in the system.

2012 GMC Sierra 3500 HDs For Sale Nearby

  • 2012 Denali

    2012 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Sep 2016 • 299 Fuel-ups

    Property of graeck1

  • 16.8 Avg MPG
  • '12 GMC

    2012 GMC Sierra 3500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
    Added Dec 2016 • 335 Fuel-ups

    Property of martinweber

  • 17.9 Avg MPG
  • Jim

    2012 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Extended Cab Pickup
    Added Apr 2018 • 38 Fuel-ups

    Property of jimmiller17

  • 12.7 Avg MPG
  • Cruella

    2012 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Apr 2018 • 6 Fuel-ups

    Property of CJayD

  • 15.9 Avg MPG
  • Denali

    2012 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Aug 2016 • 147 Fuel-ups

    Property of k78stuff

  • 13.3 Avg MPG
  • My Sierra 3500 HD

    2012 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Feb 2018 • 12 Fuel-ups

    Property of pcloss

  • 14.0 Avg MPG
  • My Sierra 3500 HD

    2012 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Oct 2016 • 45 Fuel-ups

    Property of Whato

  • 17.3 Avg MPG
  • Ton truck

    2012 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Extended Cab Pickup
    Added Apr 2018 • 3 Fuel-ups

    Property of fsb_scoh

  • 13.2 Avg MPG
  • Sierra

    2012 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Jan 2017 • 6 Fuel-ups

    Property of sinnettc

  • 13.4 Avg MPG
  • GMC

    2012 GMC Sierra 3500 HD WT 6.6L V8 DIESEL Automatic 6 Speed
    Added Sep 2016 • 98 Fuel-ups

    Property of seraphim

  • 12.6 Avg MPG
  • 2012 3500HD

    2012 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Sep 2013 • 320 Fuel-ups

    Property of drfife

  • 10.7 Avg MPG
  • My Sierra 3500 HD

    2012 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Nov 2015 • 7 Fuel-ups

    Property of Karonb

  • 11.3 Avg MPG
  • duelly

    2012 GMC Sierra 3500 HD DIESEL
    Added Mar 2012 • 17 Fuel-ups

    Property of Pamelav

  • 14.5 Avg MPG
  • GMC

    2012 GMC Sierra 3500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
    Added Dec 2016 • 184 Fuel-ups

    Property of martinweber

  • 14.4 Avg MPG
  • GMC Sierra

    2012 GMC Sierra 3500 HD DIESEL V8
    Added May 2012 • 14 Fuel-ups

    Property of copperpot126

  • 11.1 Avg MPG

Recent Activity

from other GMC Sierra 3500 HD vehicles (View All)

Tips

Don't shift down with the shift indicator - go by bsfp and instant mpg

Shift indicators usually go on how much the go pedal is depr... ...

by Charles1989

Read more tips