Click here to see important news regarding the aCar App

GMC Sierra 3500 HD MPG

171 GMC Sierra 3500 HDs have provided 3.6 million miles of real world fuel economy & MPG data.
Click here to view all the GMC Sierra 3500 HDs currently participating in our fuel tracking program.

GMC Sierra 3500 HDs For Sale Nearby

Recent Activity

from other GMC Sierra 3500 HD vehicles (View All)

Tips

Consider Total Cost of Ownership with Tires, not just Tire Pressure!

Many will suggest simply over inflating tires for best milea... ...

by miles0smiles

Read more tips