Click here to see important news regarding the iOS apps

1999 GMC C2500 MPG

Based on data from 3 vehicles, 17 fuel-ups and 4,260 miles of driving, the 1999 GMC C2500 gets a combined Avg MPG of 12.47 with a 2.12 MPG margin of error.

Below you can see a distribution of the fuel-ups with 3 outliers (15.00%) removed.

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

1999 GMC C2500s For Sale Nearby

  • Lauri truck

    1999 GMC C2500 Sierra SL 5.7L V8 GAS Automatic 4 Speed
    Added Mar 2017 • 16 Fuel-ups

    Property of viggo1

  • 21.0 Avg MPG
  • Red Truck

    1999 GMC C2500 GAS V8
    Added Aug 2013 • 5 Fuel-ups

    Property of twigg

  • 16.8 Avg MPG
  • Dave

    1999 GMC C2500 DIESEL V8
    Added Jan 2011 • 5 Fuel-ups

    Property of ksp

  • 10.2 Avg MPG

Recent Activity

from other GMC C2500 vehicles (View All)


Don't top off at the pump

When you fill up, wait for the pump to click and then stop. ... ...

by jimbobbeng

Read more tips