GM Inside News Forum banner

Spied: 2010 Silverado 1500 with 4.5-L Duramax Diesel V-8

42K views 48 replies 42 participants last post by  Johnny P 
25% increase over the current Silvy's 20mpg is only 25mpg. But that is with the 4spd auto. But compensate for the HD frame and pretty much manitory Ext Cab, Reg Bed combo, and 25mpg is what is expected.
It would be nice to see it in RCSB.

25 MPG would only be about 1 MPG less than what I averaged in the 2004 and 2005 Malibus I owned several years ago. So yes, it is quite exciting :)
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top