The present invention provides a lubricating oil composition capable of achieving a lubricating property, a thermal stability, an oxidation stability, an anti-discoloring property and an anti-varnishing performance with a higher level by compounding a phosphorus compound having a specific structure in a base oil, as well as a lubricating oil composition for internal combustion engines which is excellent in wear resistance, high-temperature detergency and base number retention property although it has a low phosphorus content, a low sulfur content and a low sulfated ash content.
本发明提供了一种润滑油组合物,通过在基础油中复配具有特定结构的
磷化合物,能够实现更高
水平的润滑性能、热稳定性、氧化稳定性、抗变色性能和防变色性能,还提供了一种内燃机用润滑油组合物,虽然
磷含量低、
硫含量低、
硫酸盐灰分含量低,但具有优异的耐磨性、高温清净性和基数保持性能。