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1999 GMC K3500 MPG

Based on data from 3 vehicles, 56 fuel-ups and 11,283 miles of driving, the 1999 GMC K3500 gets a combined Avg MPG of 9.01 with a 0.59 MPG margin of error.

Below you can see a distribution of the fuel-ups with 2 outliers (3.45%) removed.

Following shows the average MPG of each of the 3 vehicles in the system.

1999 GMC K3500s For Sale Nearby

  • Dually Pickup

    1999 GMC K3500 Sierra SLE 6.5L V8 DIESEL Automatic 4 Speed
    Added May 2017 • 47 Fuel-ups

    Property of d4transport

  • 11.1 Avg MPG
  • My K3500

    1999 GMC K3500 Sierra SLE 7.4L V8 GAS Automatic 4 Speed
    Added Dec 2016 • 16 Fuel-ups

    Property of 19carter67

  • 9.7 Avg MPG
  • 1999 GMC K3500

    1999 GMC K3500 GAS V8
    Added Sep 2012 • 11 Fuel-ups

    Property of jbaumert

  • 9.5 Avg MPG

Recent Activity

from other GMC K3500 vehicles (View All)


want good FE? I want to help

1. I have found that cars get better mileage on better fuel.... ...

by hylander89

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