Click here to see important news regarding the aCar App

2015 GMC Sierra 1500 MPG

Based on data from 215 vehicles, 22,946 fuel-ups and 6,650,703 miles of driving, the 2015 GMC Sierra 1500 gets a combined Avg MPG of 15.71 with a 0.04 MPG margin of error.

Below you can see a distribution of the fuel-ups with 718 outliers (3.03%) removed.

Following shows the average MPG of each of the 215 vehicles in the system.

2015 GMC Sierra 1500s For Sale Nearby

  • My Sierra 1500

    2015 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 8 Speed
    Added Nov 2017 • 42 Fuel-ups

    Property of nfoufas

  • 16.1 Avg MPG
  • Joe's Sierra 1500

    2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
    Added Oct 2015 • 129 Fuel-ups

    Property of GMCJoe

  • 18.4 Avg MPG
  • GMC Sierra Denali

    2015 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
    Added Mar 2015 • 138 Fuel-ups

    Property of Brady_SS

  • 16.8 Avg MPG
  • Sierra

    2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
    Added Apr 2018 • 199 Fuel-ups

    Property of curtisa95

  • 18.1 Avg MPG
  • My Truck

    2015 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added May 2018 • 411 Fuel-ups

    Property of arosin

  • 17.4 Avg MPG
  • GMC Sierra 1500 SLT

    2015 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Feb 2017 • 86 Fuel-ups

    Property of TheLazyC

  • 14.9 Avg MPG
  • My Sierra 1500

    2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Feb 2018 • 34 Fuel-ups

    Property of KorCar1

  • 18.1 Avg MPG
  • My Sierra 1500

    2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
    Added Mar 2018 • 53 Fuel-ups

    Property of Fastlane01

  • 15.3 Avg MPG
  • Sierra

    2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
    Added Feb 2019 • 94 Fuel-ups

    Property of Snafujg

  • 15.7 Avg MPG
  • My Sierra 1500

    2015 GMC Sierra 1500 SLE 4.3L V6 FLEX Automatic 6 Speed Crew Cab Pickup
    Added Jul 2017 • 37 Fuel-ups

    Property of Big_Bad_Wolfe

  • 15.9 Avg MPG
  • Big Black

    2015 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
    Added Mar 2015 • 107 Fuel-ups

    Property of uscoastie1

  • 16.5 Avg MPG
  • Blue truck

    2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Dec 2017 • 34 Fuel-ups

    Property of ZollieH77

  • 12.2 Avg MPG
  • 2015 GMC Sierra

    2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Sep 2016 • 210 Fuel-ups

    Property of jrulapaugh

  • 12.3 Avg MPG
  • My Sierra 1500

    2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added Oct 2017 • 23 Fuel-ups

    Property of woodyoc

  • 16.0 Avg MPG
  • 2015 Sierra 5.3 Z71 with cap

    2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Dec 2016 • 10 Fuel-ups

    Property of hopkid

  • 18.5 Avg MPG
  • My Sierra 1500

    2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
    Added May 2017 • 24 Fuel-ups

    Property of brennans

  • 17.4 Avg MPG
  • Z. Stella

    2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Oct 2017 • 62 Fuel-ups

    Property of Mtnboarder

  • 16.3 Avg MPG
  • GMC Sierra

    2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
    Added Aug 2016 • 122 Fuel-ups

    Property of Roadwarrior32

  • 16.6 Avg MPG
  • GMC Sierra 1500

    2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
    Added Dec 2017 • 5 Fuel-ups

    Property of rodflowers8888

  • 18.7 Avg MPG
  • Sierra

    2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Sep 2017 • 11 Fuel-ups

    Property of kpmerritt

  • 16.1 Avg MPG

Recent Activity

from other GMC Sierra 1500 vehicles (View All)

Tips

Keep you automatic transmission locked-up

If you have a traditional automatic transmission with a torq... ...

by danwat1234

Read more tips