BBencker
Junior Member
So I bought my 6.4 with 18000 miles and the start up tick. Told it was normal. The previous owner did some oil changes. I was sure to use pup 0w40 per the manual. Not sure when but the pump has failed and is getting warranty replacement. When they are done I will be sure to do a 3000 mile change and an independent oil analysis. In Central NC winter time 30-50* summer 70-100* what weights are you all suggesting?