▎ 摘　　要

NOVELTY - Composite additive comprises 1-10 pts. wt. lubricating base oil, 1-5 pts. wt. graphene, 1-5 pts. wt. dispersant, 10-30 pts. wt. anti-wear agent and 1-3 pts. wt. nanoparticles. USE - Used as composite additive. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for: (1) preparation of composite additive comprising (i) adding lubricating base oil and graphene into high-speed mixer under stirring, heating at 100-130 degrees C for 1-5 hours under homogeneous stirring, and (ii) adding dispersant, anti-wear agent and nanoparticle into high-speed mixer, and raising the temperature to 90-150 degrees C, mixing at a speed of 1500 revolutions per minute for 5-30 minutes to obtain final product; and (2) lubricating oil comprising 100 pts. wt. base oil and 1-5 pts. wt. composite additive.