2015 GMC Sierra MPG

Based on data from 6 vehicles, 263 fuel-ups and 84,106 miles of driving, the 2015 GMC Sierra gets a combined Avg MPG of 16.01 with a 0.27 MPG margin of error.

Below you can see a distribution of the fuel-ups with 43 outliers (14.05%) removed.

Following shows the average MPG of each of the 6 vehicles in the system.

2015 GMC Sierras For Sale Nearby

  • Delta Sierra

    2015 GMC Sierra 5.3L V8 GAS Automatic 6 Speed
    Added Sep 2016 • 31 Fuel-ups

    Property of oldelkhunter

  • 19.8 Avg MPG
  • New Truck

    2015 GMC Sierra All Terrain 5.3L V8 GAS Automatic 6 Speed
    Added Oct 2016 • 98 Fuel-ups

    Property of navy0010

  • 15.5 Avg MPG
  • GMC Black

    2015 GMC Sierra 5.3L V8 GAS Automatic 6 Speed
    Added Aug 2016 • 30 Fuel-ups

    Property of JoeShaker

  • 15.9 Avg MPG
  • Moms New Wheels

    2015 GMC Sierra 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
    Added Oct 2015 • 71 Fuel-ups

    Property of Momsweetride

  • 15.9 Avg MPG
  • Blue Bombshell

    2015 GMC Sierra All Terrain 5.3L V8 GAS Automatic 6 Speed
    Added Sep 2016 • 67 Fuel-ups

    Property of kcbace

  • 14.8 Avg MPG
  • 2015 GMC Sierra

    2015 GMC Sierra 5.3L V8 GAS Automatic 6 Speed
    Added Aug 2016 • 21 Fuel-ups

    Property of cheese7007

  • 13.0 Avg MPG

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Tips

Open up intake and exhaust on older vehicles

Running a proper Cold-Air Intake or Short-Ram Intake can inc... ...

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