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2015 GMC Sierra 2500 HD MPG

Based on data from 115 vehicles, 10,264 fuel-ups and 3,350,406 miles of driving, the 2015 GMC Sierra 2500 HD gets a combined Avg MPG of 13.13 with a 0.07 MPG margin of error.

Below you can see a distribution of the fuel-ups with 140 outliers (1.35%) removed.

Following shows the average MPG of each of the 115 vehicles in the system.

2015 GMC Sierra 2500 HDs For Sale Nearby

  • My Sierra 2500 HD

    2015 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
    Added Aug 2019 • 99 Fuel-ups

    Property of k1llswitch

  • 13.6 Avg MPG
  • GMC Truck

    2015 GMC Sierra 2500 HD Denali 6.0L V8 FLEX Automatic 6 Speed
    Added Mar 2017 • 201 Fuel-ups

    Property of thevinman2

  • 9.9 Avg MPG
  • Sierra 2500 HD

    2015 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Oct 2018 • 123 Fuel-ups

    Property of DooChess

  • 15.5 Avg MPG
  • 2015 Sierra 2500

    2015 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Dec 2015 • 186 Fuel-ups

    Property of hemigoat2003

  • 13.2 Avg MPG
  • 2015 Sierra 2500 HD Denali

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Mar 2019 • 66 Fuel-ups

    Property of tlish1

  • 14.2 Avg MPG
  • My Sierra 2500 HD

    2015 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Jun 2023 • 52 Fuel-ups

    Property of dsmitty37

  • 16.3 Avg MPG
  • My Sierra 2500 HD

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Jul 2018 • 85 Fuel-ups

    Property of dirtymax15

  • 13.8 Avg MPG
  • Sierra 2500

    2015 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Aug 2024 • 14 Fuel-ups

    Property of ruemawson

  • 11.8 Avg MPG
  • My Sierra 2500 HD

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Dec 2021 • 87 Fuel-ups

    Property of natesmith16

  • 17.3 Avg MPG
  • My Sierra 2500 HD

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Sep 2021 • 74 Fuel-ups

    Property of cdwarren

  • 15.5 Avg MPG
  • New Pickup

    2015 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
    Added Jul 2024 • 63 Fuel-ups

    Property of Eben85

  • 16.2 Avg MPG
  • Black Beauty

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Dec 2020 • 85 Fuel-ups

    Property of mschweizer68

  • 16.4 Avg MPG
  • My Sierra 2500 HD

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Sep 2021 • 3 Fuel-ups

    Property of blayrelily

  • 36.5 Avg MPG
  • GMC Denali HD

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Apr 2023 • 165 Fuel-ups

    Property of gbender2379

  • 14.2 Avg MPG
  • My Sierra 2500 HD

    2015 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Sep 2023 • 6 Fuel-ups

    Property of mikeJonze

  • 14.3 Avg MPG
  • 2500HD

    2015 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Jul 2022 • 28 Fuel-ups

    Property of dhinger1986

  • 10.5 Avg MPG
  • My Sierra 2500 HD

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Jun 2015 • 353 Fuel-ups

    Property of flymhi

  • 15.3 Avg MPG
  • Sierra Denali

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Mar 2020 • 69 Fuel-ups

    Property of MikeGes

  • 12.3 Avg MPG
  • Dmax Denali

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Sep 2018 • 4 Fuel-ups

    Property of jwjost

  • 43.0 Avg MPG
  • My Sierra 2500 HD

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added May 2023 • 10 Fuel-ups

    Property of esgutah78

  • 11.7 Avg MPG

Recent Activity

from other GMC Sierra 2500 HD vehicles (View All)

Tips

top tier gas

I always get better gas mileage at stations that have top ti... ...

by labteklen

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