Patent ID: 7902131
Filing Date: 2011-03-08
Classification: C10M,C10N

Abstract:
1. A lubricating composition, comprising: a major portion of a lubricating base oil, and (1) an alkylated diphenylamine, at about 0.25 to about 1.0 mass %, of the following formula wherein R 1 is chosen from alkyl and alkaryl groups having from 4 to 9 carbons atoms per each group, R 4 is chosen from hydrogen, alkyl and alkaryl groups having from 4 to 9 carbons atoms per each group, and R 2 and R 3 are each hydrogen; (2) a 3:7 mass ratio mixture of C (3) a monosuccinimide or di-succinimide dispersant, at about 2 to about 5 mass %;