Crankcase lubricating oil composition for protection of silver bearings in locomotive diesel engines

作者: Vernon R. Small , Kenneth D. Nelson , Melanie F. Tobias , Elaine S. Yamaguchi

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摘要: The present invention is directed to a crankcase lubricating oil composition for protection of silver bearings in locomotive diesel engines comprising (A) major amount an viscosity, and (B) wear additive composition, (C) one or more detergents. the comprises mixture (i) hydrocarbylamine salt di-alkyl di-thiophosphoric acid (ii) alkyl phosphate.