gsbrockman
TDR MEMBER
Well put, sag2.....to my knowledge, the Shell oil is in the form of 15W40 for the CTD's and the Pennzoil is for everything else (5w20, 5w30, 10w30, etc.) At the current time----I still perform all of my servicing at home (oil changes, fuel filters, and tire rotations) and will continue to do so as long as I'm physically able to do so.