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2015 GMC Sierra 1500 MPG

Based on data from 207 vehicles, 20,356 fuel-ups and 5,962,048 miles of driving, the 2015 GMC Sierra 1500 gets a combined Avg MPG of 15.78 with a 0.05 MPG margin of error.

Below you can see a distribution of the fuel-ups with 611 outliers (2.91%) removed.

Following shows the average MPG of each of the 207 vehicles in the system.

2015 GMC Sierra 1500s For Sale Nearby

  • SIERRA

    2015 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Extended Cab Pickup
    Added Jun 2020 • 58 Fuel-ups

    Property of steven540i

  • 17.3 Avg MPG
  • SIERRA

    2015 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Extended Cab Pickup
    Added May 2022 • 58 Fuel-ups

    Property of steven540i

  • 17.3 Avg MPG
  • '15 GMC Seirra 1500

    2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Jul 2019 • 64 Fuel-ups

    Property of danny_coggins

  • 15.7 Avg MPG
  • Sierra 1500 Denali

    2015 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 6 Speed
    Added Apr 2018 • 250 Fuel-ups

    Property of reety82

  • 16.8 Avg MPG
  • My Sierra 1500

    2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Feb 2019 • 88 Fuel-ups

    Property of Christofo

  • 15.8 Avg MPG
  • GMC Sierra

    2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Standard Cab Pickup
    Added Mar 2020 • 28 Fuel-ups

    Property of frontrunner76

  • 18.4 Avg MPG
  • My Sierra 1500

    2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Aug 2016 • 236 Fuel-ups

    Property of DudeBro

  • 17.3 Avg MPG
  • GMC Sierra 1500

    2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
    Added Sep 2019 • 51 Fuel-ups

    Property of Gears_Gadgets

  • 14.5 Avg MPG
  • GMC Sierra

    2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
    Added Feb 2019 • 432 Fuel-ups

    Property of 0x3f8

  • 16.3 Avg MPG
  • GMC Sierra

    2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
    Added Feb 2015 • 256 Fuel-ups

    Property of glangham

  • 17.6 Avg MPG
  • '15 GMC

    2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
    Added Oct 2017 • 262 Fuel-ups

    Property of 2kwik4u

  • 16.0 Avg MPG
  • My Sierra 1500

    2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Sep 2017 • 177 Fuel-ups

    Property of tystebbins

  • 13.8 Avg MPG
  • X My Sierra 1500

    2015 GMC Sierra 1500 SLE 4.3L V6 FLEX Automatic 6 Speed
    Added Aug 2019 • 17 Fuel-ups

    Property of JTD-3SV

  • 14.9 Avg MPG
  • GMC Sierra 1500

    2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Extended Cab Pickup
    Added Feb 2019 • 102 Fuel-ups

    Property of Grizzy

  • 17.1 Avg MPG
  • My Sierra 1500

    2015 GMC Sierra 1500 4.3L V6 FLEX Automatic 6 Speed
    Added Jan 2020 • 31 Fuel-ups

    Property of MJewell

  • 16.7 Avg MPG
  • My Sierra 1500

    2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
    Added Jun 2018 • 143 Fuel-ups

    Property of cust0mbuild

  • 11.8 Avg MPG
  • Mad Max

    2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
    Added Sep 2019 • 41 Fuel-ups

    Property of gmzdad

  • 16.5 Avg MPG
  • Z

    2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
    Added Aug 2019 • 33 Fuel-ups

    Property of dex10

  • 14.9 Avg MPG
  • Onyx

    2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Aug 2015 • 296 Fuel-ups

    Property of 92teg92

  • 14.2 Avg MPG
  • 2015 GMC

    2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Extended Cab Pickup
    Added Sep 2016 • 271 Fuel-ups

    Property of crpntrmstr

  • 14.7 Avg MPG

Recent Activity

from other GMC Sierra 1500 vehicles (View All)

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