I just went from a 3.0 baby duramax "crazy milage 32-34 mpg/over 700 miles on a 24.5 gal tank".
To a 6.2 I picked up used up in Canada, that was super clean.
Just pulled my boat home from the big lake yesterday, it sure pulls it nice thats for sure.
I liked the 3.0 allot but found myself never...