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US09434906B2 Marine diesel engine lubricating oil compositions 有权
船用柴油机润滑油组成

Marine diesel engine lubricating oil compositions
Abstract:
Disclosed herein are marine diesel engine lubricating oil compositions which comprises (a) a major amount of an oil of lubricating viscosity, and (b) about 3 wt. % to about 40 wt. %, based on the total weight of the marine diesel engine lubricating oil composition, of a sulfurized, alkaline earth metal alkylphenate detergent which is substantially free of polyol promoter oxidation products.
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