I just bought a new GMC 2500HD w/ Duramax-Allison combo.

This is my second Duramax. My first one was a 2002.

All I can say, in the short time I've owned the new one, is awesome.

Currently getting 18.8 mpg on the highway and it will only get better as it gets "broken in." (480 miles on it now)

My previous Duramax was getting 20+ mpg on the Highway.







Edited by Big_Daddy (09/27/09 10:37 PM)