This invention relates to a lubricating composition comprising or resulting from the admixing of: base oil, detergent, and one or more metal alkanoates having a quaternary carbon atom at the 2 position, the 2 position, or both the 2 and 2 positions, where the lubricating composition preferably has an adhesive wear of 100 hours or more, a foam volume of 70 ml or less at 24 C., and 50 ml or less at 93.5 C., and, optionally, a total base number of 7 mgKOH/g or more.

The disclosed technology relates to compositions suitable for use as lubricants and lubricant additive compositions which comprise a 1,4-benzoxazine-derived antioxidant, wherein the antioxidant itself may also be described as a 1,4-benzoxazine compound, and optionally comprising other additives suitable for lubricants, such as an anti-wear agent, a detergent, or a dispersant.

Lubricating oil composition is provided. The composition includes several components including a major amount of a base oil, a mixture of alkylated diphenylamines having a weight ratio of mono-alkylated diphenylamine to di-alkylated diphenylamine ranging from 0.6 to 4.0, and a molybdenum or sulfur additive that provides synergistic enhancement of oxidation stability in combination with the mixture of alkylated diphenylamines.