2015 GMC Sierra 3500 HD MPG

Based on data from 18 vehicles, 1,000 fuel-ups and 391,906 miles of driving, the 2015 GMC Sierra 3500 HD gets a combined Avg MPG of 14.31 with a 0.27 MPG margin of error.

Below you can see a distribution of the fuel-ups with 13 outliers (1.28%) removed.

Following shows the average MPG of each of the 18 vehicles in the system.

2015 GMC Sierra 3500 HDs For Sale Nearby

  • 2015 GMC 3500

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Oct 2016 • 124 Fuel-ups

    Property of modoan

  • 13.5 Avg MPG
  • Denali

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Sep 2015 • 113 Fuel-ups

    Property of cowdoc

  • 19.1 Avg MPG
  • 2015 Denali 3500

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Sep 2016 • 107 Fuel-ups

    Property of Kturner

  • 15.1 Avg MPG
  • 2015 GMC 3500

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Sep 2016 • 160 Fuel-ups

    Property of nbomar1

  • 14.1 Avg MPG
  • My Sierra 3500 HD

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Oct 2015 • 69 Fuel-ups

    Property of gjtj

  • 14.0 Avg MPG
  • My Sierra 3500 HD

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Apr 2015 • 96 Fuel-ups

    Property of exrr35

  • 18.0 Avg MPG
  • White GMC

    2015 GMC Sierra 3500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
    Added Sep 2016 • 37 Fuel-ups

    Property of jambiefsj

  • 13.6 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
  • Guzzler

    2015 GMC Sierra 3500 HD SLT 6.0L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added May 2015 • 59 Fuel-ups

    Property of Camstyn

  • 10.7 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
  • Tims Denali Dually

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Sep 2015 • 76 Fuel-ups

    Property of tjflanman

  • 12.1 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

Recent Activity

from other GMC Sierra 3500 HD vehicles (View All)

Tips

Cruse Control

Use cruse control where safe, the car will drive itself more economically than you can.

by David404

Read more tips