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79sierra · 03-22-2016, 10:45 AM

All flat tappet cam engines need ZDDP oils, I use Royal Purple HPS 10W 30 in mine.

03-22-2016, 10:45 AM	#3217
79sierra Registered User Join Date: May 2015 Location: Parma, Ohio Posts: 35	Re: Restoring Rusty All flat tappet cam engines need ZDDP oils, I use Royal Purple HPS 10W 30 in mine.