Patent ID: 9376646
Filing Date: 2016-06-28
CPC Classification: C10M,C10N

Claim Text:
1. A lubricating oil composition comprising a lubricating base oil having a sulfur content of 0.01 percent by mass or less and on the basis of the total mass of the composition: (A) 0.5 percent by mass or more and 1.2 percent by mass or less of a fatty acid amide compound represented by formula (1); (B) 0.05 percent by mass or more and 1.5 percent by mass or less of thiadiazole; and (C) 0.1 percent by mass of a phosphorus-containing additive, and containing sulfur in an amount of 0.2 percent by mass or more on the basis of sulfur and phosphorus in an amount of 0.2 percent by mass or less on the basis of phosphorus, the ratio of the sulfur basis percent by mass/the phosphorus basis percent by mass (S/P) being from 3.0 to 4.8: wherein R 1 is an alkyl or alkenyl group having 10 to 30 carbon atoms, R 2 , R 3 , R 5 and R 6 are each independently hydrogen or an alkyl group having 1 to 3 carbon atoms, R 7 is hydrogen or an alkyl or alkenyl group having 1 to 30 carbon atoms, R 4 is an alkylene group having 1 to 4 carbon atoms, k is an integer of 0 to 6, m is an integer of 0 to 2, and n, p and r are each an integer of 0 to 1, and wherein k, m, n, p, and r are not all 0.