Thread: I didn't know this about newer engine oils.
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First recorded activity by BoatBanter: Dec 2009
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Default I didn't know this about newer engine oils.
On Feb 5, 6:26*pm, Tim wrote:
Though the oils have improved over the years, the newer oils can
actually damage your engine.

http://carlyle.uslakes.info/News/Article.asp?ID=1137

They pulled the zinc out of oils when engines went to roller
camshafts. Makes me wonder about my 140 Mercruiser (1983) an my 350 GM
(1977)

Dont you use straight 30 weight? Or are you talking about 10W30?
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