The present invention provides for lubricating oil compositions, and method of making same, comprising the synergistic combination of a synthetic lube base stock, a copper containing antioxidant and a deposit control enhancing amount of an oil soluble or oil dispersible multiring aromatic compound, typically 2, 3 and 4 ring multiring aromatics. Typically these are added in a minor amount of less than 25 wt%. The invention has utility in lube applications.
本发明提供了润滑油组合物及其制造方法,包括合成润滑油基础油、含
铜抗氧化剂和沉积物控制增强量的油溶性或油分散性多环
芳烃化合物(通常为 2、3 和 4 环多环
芳烃)的协同组合。这些物质的添加量通常小于 25 wt%。本发明适用于润滑油应用。