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mud.man.rj · 01-31-2012, 10:01 PM

I always use Rotela T diesel oil to break in all engines I build the conventional 10/30 with a Gm additive which I put in at every oil change it is high in Zinc and have used it for over 20 years, before the big Zinc problem. The Comp cam stuff is same as Gm additive.

01-31-2012, 10:01 PM	#64
mud.man.rj Registered User Join Date: Dec 2011 Location: Creighton Sask. Canada Posts: 4,121	Re: Camshafts.. I always use Rotela T diesel oil to break in all engines I build the conventional 10/30 with a Gm additive which I put in at every oil change it is high in Zinc and have used it for over 20 years, before the big Zinc problem. The Comp cam stuff is same as Gm additive.