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#71019
jerry-ahrens
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    I agree that the engines were discussing need the heavy oil mix. One thing that bugs me though is all the black goo that comes with using such a heavy mix. I think that’s the detergents and additives in TCW3. I remember an article by Bill Salusbury that was in the Outboarder years back. As I recall, he did some extensive testing with different oils on a Johnson PO15. I cant remember what type of oil that he recommended…. I think it was a type of aviation 4 cycle (piston) engine oil. Maybe someone remembers that?? I’ll have to see if I can find that article.