| abstract |
A lubricating composition comprising a majority of the base oil and an additive component comprising an effective amount of one or more compounds of formula (I). Embedded image (In the formula, R is one of the following groups, methyl, ethyl, n-propyl, i-propyl or a combination thereof, and n is 0 to 8.) In a preferred embodiment, R is a methyl group and n is 2-3. The lubricating composition improves the lubricating performance, especially by suppressing oxidation and improving thermal stability. |