| abstract |
(57) [Problem] To provide a lubricating composition capable of improving the friction reducing effect and oxidative stability of an organic molybdenum compound and exhibiting the friction reducing performance for a long time. as well as, Improved solubility of organic molybdenum compounds that are difficult to dissolve in lubricating base oils such as MoDTC, so that organic molybdenum compounds are less likely to separate and precipitate even when blended with lubricating base oils having a low aromatic content such as high VI oils. To do. SOLUTION: A lubricating base material has the following general formula (1) as a component (A). (Wherein, R 1 represents an alkyl group having at least 4 carbon atoms, R 2 represents an alkylene group having 2 to 4 carbon atoms, L represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or —R Represents a group represented by 2 OH. A) a lubricating composition comprising an organic molybdenum compound as the component (B). |