| abstract |
Lubricant compositions comprises a lubricant base oil and one or more compounds resulting the modification of a succinimide represented by formula (1) or (2) n n n wherein R 1 and R 2 may be the same or different and are each independently a hydrocarbon group having 8 to 30 carbon atoms, R 3 and R 4 may be the same or different and are each independently a hydrocarbon group having 1 to 4 carbon atoms, R 5 is hydrogen or a hydrocarbon group having 1 to 30 carbon atoms, n is an integer from 1 to 7. The lubricant compositions have a long-lasting anti-shudder property, an enhanced transmission capacity for a wet clutch, and an excellent shifting property. |