Thanks man. I'll stick to Penrite Vantage premium mineral 15w40. My car engines run noticeably smoother on it than any other oils I have run in them, particularly the 302 Windsor in the Fairlane. Definitely worth the extra spend.
An old clapped out flathead Briggs would feel like it's having a spa with that stuff!!


Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!