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LUBRICANT COMPOSITION FOR COMBUSTION ENGINE CONTAINING DISPERSANT ADDITVE AND POLYMER DISPERSANT VISCOSITY INDEX IMPROVER
LUBRICANT COMPOSITION FOR COMBUSTION ENGINE CONTAINING DISPERSANT ADDITVE AND POLYMER DISPERSANT VISCOSITY INDEX IMPROVER
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机译:包含分散剂添加剂和聚合物分散剂粘度指数的燃烧发动机的润滑剂组成
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摘要
A multigrade lubricating oil composition with enhanced anti-wear properties for use in an internal combustion engine comprises (a) a base oil comprising at least 90 % by weight of the base oil, of one or more basestocks selected from the group consisting of base stocks derived from Fischer-Tropsch synthesised, waxy, paraffinic hydrocarbon material by processes comprising hydrocracking and/or hydroisomerisation, Group II basestocks, Group III basestocks and mixtures thereof; (b) one or more dispersant viscosity modifiers in a total amount of 0.15 to 0.8 % by weight of the composition; and (c) one or more dispersants in a total amount of active dispersants of 1.5 to 3 % by weight of the composition.
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