2015 GMC Sierra 3500 HD MPG

Based on data from 19 vehicles, 1,151 fuel-ups and 443,088 miles of driving, the 2015 GMC Sierra 3500 HD gets a combined Avg MPG of 14.24 with a 0.25 MPG margin of error.

Below you can see a distribution of the fuel-ups with 16 outliers (1.37%) removed.

Following shows the average MPG of each of the 19 vehicles in the system.

2015 GMC Sierra 3500 HDs For Sale Nearby

  • Denali

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Sep 2015 • 120 Fuel-ups

    Property of cowdoc

  • 19.2 Avg MPG
  • 2015 GMC 3500

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Sep 2016 • 167 Fuel-ups

    Property of nbomar1

  • 14.2 Avg MPG
  • Gmc 3500

    2015 GMC Sierra 3500 HD 6.6L V8 DIESEL Automatic 6 Speed
    Added Mar 2017 • 118 Fuel-ups

    Property of johndeere160lc

  • 13.8 Avg MPG
  • My Sierra 3500 HD

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Apr 2015 • 97 Fuel-ups

    Property of exrr35

  • 18.0 Avg MPG
  • Tims Denali Dually

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Sep 2015 • 84 Fuel-ups

    Property of tjflanman

  • 11.8 Avg MPG
  • My Sierra 3500 HD

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Oct 2015 • 72 Fuel-ups

    Property of gjtj

  • 14.1 Avg MPG
  • 2015 Denali 3500

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Sep 2016 • 110 Fuel-ups

    Property of Kturner

  • 15.2 Avg MPG
  • 2015 GMC 3500

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Oct 2016 • 131 Fuel-ups

    Property of modoan

  • 13.2 Avg MPG
  • White GMC

    2015 GMC Sierra 3500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
    Added Sep 2016 • 41 Fuel-ups

    Property of jambiefsj

  • 13.5 Avg MPG
  • Guzzler

    2015 GMC Sierra 3500 HD SLT 6.0L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added May 2015 • 60 Fuel-ups

    Property of Camstyn

  • 10.7 Avg MPG
  • My Sierra 3500 HD

    2015 GMC Sierra 3500 HD SLT 6.0L V8 FLEX Automatic 6 Speed
    Added Dec 2016 • 16 Fuel-ups

    Property of tobedestyn

  • 9.8 Avg MPG
  • GMC Sierra 3500 Denali

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Oct 2016 • 29 Fuel-ups

    Property of rkt4796606

  • 11.3 Avg MPG
  • Denali Dual

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Feb 2016 • 29 Fuel-ups

    Property of cambucsfan

  • 12.4 Avg MPG
  • GMC 3500

    2015 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Sep 2016 • 22 Fuel-ups

    Property of xrayman

  • 18.2 Avg MPG
  • Great white

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Feb 2015 • 46 Fuel-ups

    Property of 2manyliters

  • 14.6 Avg MPG
  • My Sierra 3500 HD

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Dec 2015 • 5 Fuel-ups

    Property of 750hpDenali

  • 12.5 Avg MPG
  • Blue Dually

    2015 GMC Sierra 3500 HD Denali 6.6L DIESEL V8 Automatic 6 Crew Cab Pickup (4 Door)
    Added Apr 2015 • 58 Fuel-ups

    Property of BigJon

  • 12.5 Avg MPG
  • Denali HD

    2015 GMC Sierra 3500 HD Denali 6.6L DIESEL V8 Automatic 6
    Added Jun 2014 • 12 Fuel-ups

    Property of fury

  • 13.5 Avg MPG
  • whitey

    2015 GMC Sierra 3500 HD DIESEL
    Added Apr 2014 • 3 Fuel-ups

    Property of jbuff

  • 14.6 Avg MPG

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