R Red91 Joined Dec 9, 2013 Messages 3,083 Location Alabama, United States Jul 8, 2017 #21 Do you know, by any chance, the typical zinc and phosphorus numbers for a quality non detergent oil?
E Eddie Joined Dec 7, 2003 Messages 12,370 Location Florida, Cape Coral Jul 8, 2017 #22 I've heard the old argument that the detergents are replacing some of the oil so we are at risk. Ed
