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2015 GMC Sierra 3500 HD MPG

Based on data from 46 vehicles, 3,945 fuel-ups and 1,427,861 miles of driving, the 2015 GMC Sierra 3500 HD gets a combined Avg MPG of 13.57 with a 0.13 MPG margin of error.

Below you can see a distribution of the fuel-ups with 64 outliers (1.60%) removed.

Following shows the average MPG of each of the 46 vehicles in the system.

2015 GMC Sierra 3500 HDs For Sale Nearby

  • 2015 GMC Sierra 3500 HD Denali

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Apr 2018 • 165 Fuel-ups

    Property of tbelllis1963

  • 15.3 Avg MPG
  • Nali

    2015 GMC Sierra 3500 HD Denali 6.0L V8 CNG Automatic 6 Speed
    Added Jul 2023 • 48 Fuel-ups

    Property of Sober-Tony

  • 12.0 Avg MPG
  • Denali

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Aug 2023 • 607 Fuel-ups

    Property of Brucelas

  • 10.9 Avg MPG
  • Denali

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Oct 2022 • 56 Fuel-ups

    Property of dek781

  • 16.1 Avg MPG
  • R2D2

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added May 2021 • 74 Fuel-ups

    Property of Klass7

  • 12.5 Avg MPG
  • Big Spud

    2015 GMC Sierra 3500 HD 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Feb 2024 • 9 Fuel-ups

    Property of tiffanykorn

  • 15.9 Avg MPG
  • 2015 3500 Sierra

    2015 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added May 2019 • 111 Fuel-ups

    Property of NJFF41

  • 14.5 Avg MPG
  • GMC Sierra 3500 HD

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Jun 2022 • 78 Fuel-ups

    Property of nascardreamin

  • 13.0 Avg MPG
  • 2015 GMC 3500HD

    2015 GMC Sierra 3500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
    Added Aug 2023 • 37 Fuel-ups

    Property of kenaxcix

  • 12.9 Avg MPG
  • Sierra 3500 HD

    2015 GMC Sierra 3500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Mar 2018 • 181 Fuel-ups

    Property of Crash

  • 14.3 Avg MPG
  • Sierra 3500 HD

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Mar 2023 • 64 Fuel-ups

    Property of Tx_Rebel

  • 12.7 Avg MPG
  • My Sierra 3500 HD

    2015 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Dec 2021 • 42 Fuel-ups

    Property of RJenkins

  • 15.6 Avg MPG
  • GMC Sierra 3500 HD

    2015 GMC Sierra 3500 HD SLT 6.0L V8 FLEX Automatic 6 Speed
    Added Dec 2018 • 99 Fuel-ups

    Property of CAPaul

  • 12.4 Avg MPG
  • My Sierra 3500 HD

    2015 GMC Sierra 3500 HD 6.0L V8 GAS Automatic 6 Speed
    Added Sep 2019 • 100 Fuel-ups

    Property of jjj4x4

  • 9.2 Avg MPG
  • My Sierra 3500 HD

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Mar 2023 • 15 Fuel-ups

    Property of 1500HD

  • 14.0 Avg MPG
  • GMC Hd

    2015 GMC Sierra 3500 HD 6.6L V8 DIESEL Automatic 6 Speed Cab & Chassis - Crew Cab
    Added Oct 2018 • 416 Fuel-ups

    Property of dflores81

  • 13.7 Avg MPG
  • Little Red Wagon

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Feb 2018 • 321 Fuel-ups

    Property of ANK01

  • 15.1 Avg MPG
  • Sierra 3500HD

    2015 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Apr 2021 • 113 Fuel-ups

    Property of abonini

  • 15.0 Avg MPG
  • My Sierra 3500 HD

    2015 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Dec 2021 • 40 Fuel-ups

    Property of crashper

  • 14.9 Avg MPG
  • My Sierra 3500 HD

    2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added May 2021 • 28 Fuel-ups

    Property of fatalberts

  • 10.7 Avg MPG

Recent Activity

from other GMC Sierra 3500 HD vehicles (View All)

Tips

You do you

Don't play "games" with other drivers! Do your own thing, within reason.

by jmn20171

Read more tips