Originally Posted by tikkanut
Originally Posted by Couesdeer
just turned 240K on my '03 Silverado 2500HD. 6L gasser. Starting to show its age, but still runs fine.


My clean one owner '02 2500HD just turned 20 YO......6.0L gasser too

Just turned 137K

Goes by the name 'Guzzler'

Yep... 11 MPG usually. When running fast (interstate), I can get as good as 14MPG.