Lubricating oils of enhanced oxidation stability containing n-phenyl-naphthyl amines, or substituted derivatives of n-phenyl naphthyl amine and carbodiimide acid scavengers

摘要

Lubricating oils of enhanced oxidation stability are obtained by adding to the lubricating oil a mixture comprising n-phenyl-1-naphthyl amine and an acid scavenger such as carbodiimide.