1988 GMC C3500 MPG

Based on data from 1 vehicles, 0 fuel-ups and N/A miles of driving, the 1988 GMC C3500 gets a combined Avg MPG of 0.00 with a 0.00 MPG margin of error.

Below you can see a distribution of the fuel-ups with 28 outliers (100.00%) removed.

1988 GMC C3500s For Sale Nearby

  • Dually

    1988 GMC C3500 Sierra SLE 7.4L V8 GAS Automatic 3 Speed Standard Cab Pickup
    Added Sep 2014 • 33 Fuel-ups

    Property of scainbestone

  • 6.8 Avg MPG

Recent Activity

from other GMC C3500 vehicles (View All)

Tips

Best MPG is affected more by vehicle speed than engine speed.

In response to the tip that there is a "best MPG engine RPM ... ...

by jldude

Read more tips