2015 GMC Sierra 2500 HD MPG

Based on data from 51 vehicles, 1,890 fuel-ups and 662,259 miles of driving, the 2015 GMC Sierra 2500 HD gets a combined Avg MPG of 13.76 with a 0.14 MPG margin of error.

Below you can see a distribution of the fuel-ups with 26 outliers (1.36%) removed.

Following shows the average MPG of each of the 51 vehicles in the system.

2015 GMC Sierra 2500 HDs For Sale Nearby

  • Denali 2500

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Aug 2016 • 68 Fuel-ups

    Property of jesse828

  • 13.4 Avg MPG
  • sierra

    2015 GMC Sierra 2500 HD 6.0L V8 FLEX Automatic 6 Speed Extended Cab Pickup
    Added Apr 2015 • 73 Fuel-ups

    Property of theiceman2448

  • 11.4 Avg MPG
  • My Sierra 2500 HD

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Crew Cab Pickup (4 Door)
    Added Aug 2015 • 31 Fuel-ups

    Property of Hachiroku86

  • 14.8 Avg MPG
  • My Sierra 2500 HD

    2015 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
    Added Mar 2017 • 4 Fuel-ups

    Property of csgt8877

  • 15.2 Avg MPG
  • Denali HD

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Feb 2017 • 84 Fuel-ups

    Property of DenaliDad

  • 13.2 Avg MPG
  • My Sierra 2500 HD

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Cab & Chassis - Crew Cab
    Added Jun 2015 • 100 Fuel-ups

    Property of flymhi

  • 15.8 Avg MPG
  • GMC Truck

    2015 GMC Sierra 2500 HD Denali 6.0L V8 FLEX Automatic 6 Speed
    Added Mar 2017 • 11 Fuel-ups

    Property of thevinman2

  • 10.1 Avg MPG
  • 2015 Truck

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Aug 2016 • 76 Fuel-ups

    Property of ryankx250

  • 14.9 Avg MPG
  • My Sierra 2500 HD

    2015 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
    Added Aug 2016 • 68 Fuel-ups

    Property of odenfire1819

  • 14.7 Avg MPG
  • Sierra

    2015 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Extended Cab Pickup
    Added Mar 2017 • 4 Fuel-ups

    Property of SteveB27

  • 14.5 Avg MPG
  • 2015 Sierra Denalli HD

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Sep 2016 • 94 Fuel-ups

    Property of LynnE24

  • 15.2 Avg MPG
  • My Sierra 2500 HD

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Nov 2016 • 35 Fuel-ups

    Property of btencer

  • 12.6 Avg MPG
  • 2500HD

    2015 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Jun 2015 • 69 Fuel-ups

    Property of rjhenry

  • 13.7 Avg MPG
  • Duramax Denali

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Sep 2016 • 58 Fuel-ups

    Property of jwsjr

  • 14.1 Avg MPG
  • Denali HD

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
    Added Apr 2015 • 50 Fuel-ups

    Property of CHR3

  • 15.0 Avg MPG
  • Sierra

    2015 GMC Sierra 2500 HD 6.0L V8 FLEX Automatic 6 Speed Crew Cab Pickup
    Added Oct 2015 • 35 Fuel-ups

    Property of staffordnath

  • 12.0 Avg MPG
  • Sara

    2015 GMC Sierra 2500 HD 6.0L V8 FLEX Automatic 6 Speed
    Added Oct 2015 • 77 Fuel-ups

    Property of Madams1371

  • 13.1 Avg MPG
  • 2015 Denali

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
    Added Jun 2016 • 10 Fuel-ups

    Property of Hiestand88

  • 14.4 Avg MPG
  • 2015 Sierra 2500

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

    Property of hemigoat2003

  • 14.0 Avg MPG
  • Big Red

    2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 7 Speed Crew Cab Pickup
    Added Oct 2015 • 49 Fuel-ups

    Property of Goldwing

  • 14.7 Avg MPG

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