A lubricating oil composition is provided which is excellent in oxidation stability, base number retention properties, anti-wear properties, extreme pressure properties and anti-corrosion properties and is a low phosphorus and low sulfur lubricating oil composition particularly suitable for internal combustion engines. The composition comprises a lubricating base oil, (A) at least one type selected from the group consisting of metal salts of sulfur-free phosphorus-containing acidic organic compounds, (B) at least one type selected from the group consisting of phosphorus-containing carboxylic acid compounds and metal salts thereof, and (C) at least one type selected from the group consisting of anti-oxidants.
本发明提供了一种润滑油组合物,它具有优异的氧化稳定性、基数保持特性、抗磨损特性、极压特性和抗腐蚀特性,是一种特别适用于内燃机的低
磷低
硫润滑油组合物。该组合物包括润滑基础油、(A) 至少一种从无
硫含
磷酸性有机化合物的
金属盐组成的组中选出的类型、(B) 至少一种从含
磷羧酸化合物及其
金属盐组成的组中选出的类型,以及 (C) 至少一种从
抗氧化剂组成的组中选出的类型。