▎ 摘　　要

NOVELTY - The doped carbon nano graphene-based lubricating oil additive comprises 0.1-0.5 wt.% doped carbon nano graphene, 0.5-3 wt.% dispersant, 5-23 wt.% boric acid ester and 75-94 wt.% oily solvent. USE - Doper carbon nano graphene-based lubricating oil additive (claimed). ADVANTAGE - The long-term stability of lubricating oil additive is achieved, and the abrasion resistance is excellent. The production cost of graphene and additive is reduced. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for production of doped carbon nano graphene-based lubricating oil additive, which involves heating oily solvent in a magnetic stirred water bath heater at 40-60 degrees C, adding boric acid ester, stirring for 20-50 minutes, then adding dispersant, stirring for 25-40 minutes, finally adding doped carbon nano graphene, stirring evenly, cooling lubricant, to obtain lubricating oil additive.