GMC Sierra 3500 HD MPG

78 GMC Sierra 3500 HDs have provided 1.4 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

Here's a new one... !!!

I'm sure that no one has thought about this, and maybe I'm c... ...

by ymiheere

Read more tips