Marine engine lubrication
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United States of America Patent
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Dec 17, 2013
Grant Date -
May 3, 2012
app pub date -
Oct 20, 2011
filing date -
Oct 28, 2010
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Abstract
Trunk piston marine engine lubrication, when the engine is fueled by heavy fuel oil, is effected by a composition comprising a major amount of an oil of lubricating viscosity and a minor amount of one or more phenolic compounds comprising distilled cashew nut shell liquid or hydrogenated distilled cashew nut shell liquid. Asphaltene precipitation in the lubricant, caused by the presence of contaminant heavy fuel oil, is prevented or inhibited.
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