▎ 摘　　要

NOVELTY - Engine oil auxiliary material comprises base oil, anti-wear agent, antifoaming agent, extreme pressure auxiliary material and antioxidant. The anti-wear agent comprises graphene material and white carbon black. The graphene material is prepared by laser-induced reduction of polyimide. The base oil comprises and/or type-III base oil. The antifoaming agent comprises dimethyl silicone oil and/or stearic acid. The extreme pressure auxiliary material comprises sulfurized olefin and/or phosphate. The antioxidant comprises octyl diphenylamine and/or sulfur-containing phenol antioxidant. USE - The auxiliary material is useful as lubricating oil.