The invention provides a lubricating composition containing an oil of lubricating viscosity and a sulfurized aromatic amine compound, especially sulfur coupled aniline. The invention further relates to methods of lubricating an internal combustion engine by supplying the described lubricating composition to the internal combustion engine. The invention further relates to the use of the sulfurized aromatic amine compound as a TBN booster and an antioxidant.
本发明提供了一种润滑组成物,包含具有润滑黏度的油和
硫化芳香胺化合物,特别是
硫化偶
联苯胺。本发明还涉及通过向内燃机供应所述润滑组成物来润滑内燃机的方法。本发明还涉及将
硫化芳香胺化合物用作TBN增强剂和
抗氧化剂的用途。