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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

  • GMC Sierra

    2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added May 2015 • 409 Fuel-ups

    Property of Arctic388

  • 16.4 Avg MPG
  • My Sierra 1500

    2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Oct 2015 • 86 Fuel-ups

    Property of Clemsonfan15

  • 16.1 Avg MPG
  • Da Kon

    2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
    Added Sep 2021 • 41 Fuel-ups

    Property of Tclechner

  • 16.8 Avg MPG
  • GMC Truck

    2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added May 2020 • 69 Fuel-ups

    Property of Chuck16785

  • 17.2 Avg MPG
  • GMC Sierra 1500

    2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
    Added Aug 2017 • 190 Fuel-ups

    Property of eddykc03

  • 15.6 Avg MPG
  • GMC

    2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
    Added Jul 2021 • 325 Fuel-ups

    Property of jarrett85

  • 15.5 Avg MPG
  • Gmc

    2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Mar 2017 • 206 Fuel-ups

    Property of StanIROCZ

  • 16.3 Avg MPG
  • Truck

    2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Oct 2018 • 170 Fuel-ups

    Property of kbreyette

  • 15.2 Avg MPG
  • GMC Sierra

    2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
    Added Nov 2020 • 180 Fuel-ups

    Property of glennm66

  • 14.5 Avg MPG
  • My Sierra 1500

    2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
    Added Mar 2017 • 339 Fuel-ups

    Property of CurtK

  • 16.6 Avg MPG
  • Sierra Z-71

    2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Sep 2016 • 292 Fuel-ups

    Property of acmurf1

  • 17.2 Avg MPG
  • Sierra

    2015 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Nov 2019 • 284 Fuel-ups

    Property of McCartney

  • 15.3 Avg MPG
  • 2015 GMC Sierra Crew Cab

    2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
    Added Oct 2016 • 234 Fuel-ups

    Property of dbowman711

  • 15.7 Avg MPG
  • My Sierra 1500

    2015 GMC Sierra 1500 5.3L V8 FLEX Automatic 6 Speed
    Added Jul 2020 • 27 Fuel-ups

    Property of jc5570

  • 15.8 Avg MPG
  • Sierra

    2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
    Added Jun 2015 • 319 Fuel-ups

    Property of peterv

  • 13.5 Avg MPG
  • Denali

    2015 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Jun 2019 • 114 Fuel-ups

    Property of Gmguy426

  • 8.7 Avg MPG
  • My Sierra 1500

    2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Feb 2018 • 119 Fuel-ups

    Property of Hash59

  • 17.5 Avg MPG
  • 2015 GMC

    2015 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Sep 2016 • 231 Fuel-ups

    Property of bluez06

  • 15.2 Avg MPG
  • Joey's GMC

    2015 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Sep 2016 • 211 Fuel-ups

    Property of Shakora

  • 13.9 Avg MPG
  • Corys 2015 Seirra

    2015 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
    Added Sep 2016 • 248 Fuel-ups

    Property of MrFastcars

  • 14.1 Avg MPG

Recent Activity

from other GMC Sierra 1500 vehicles (View All)

Tips

50/50 rule--updated

Although Mythbuster has "proven" that it is more efficient t... ...

by LocoDiesel

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