Patent ID: 9102896
Filing Date: 2015-08-11
Classification: C10M,C10N

Abstract:
1. A lubricating oil composition for internal combustion engines which comprises a major amount of an oil of lubricating viscosity and a minor amount of an additive composition comprising an overbased metal-containing detergent composition and a molybdenum-containing friction modifier; wherein the overbased metal-containing detergent composition comprises a calcium salicylate having an overbased degree of 1 to 4 and having an alkyl group having an average carbon atom number in the range of 14 to 18, at least 60 mol. % of said alkyl group having a carbon atom number in the range of 14 to 18; and one or more calcium-containing detergents selected from the group consisting of: a calcium sulfonate having an overbased degree of 6 to 24 and having an alkyl group having an average carbon atom number in the range of 20 to 24, at least 60 mol. % of said alkyl group having a carbon atom number in the range of 20 to 24; and a calcium salicylate having an overbased degree of 6 to 24 and having an alkyl group having an average carbon atom number in the range of 20 to 28, at least 60 mol. % of said alkyl group having a carbon atom number in the range of 20 to 28; wherein the lubricating oil composition further comprises a low overbased calcium sulfonate having an alkyl group having an average carbon atom number in the range of 14 to 24, at least 60 mol. % of said alkyl group having a carbon atom number in the range of 14 to 24 and having an overbased degree of 0.1 to 2.