▎ 摘　　要

NOVELTY - Graphene engine oil comprises 0.05-0.1 wt.% graphene, 0.8-1 wt.% high speed diesel (HSD), 10-14 wt.% boric acid ester, 0.03-0.05 wt.% metal powder microsphere, 0.01-0.04 wt.% benzotriazole, 0.01-0.02 % of di-n-butyl phosphate and the rest of lubricating oil base oil. USE - Used as graphene engine oil. ADVANTAGE - The graphene engine oil is good for making the nano metal powder attached in the mechanical structure, so as to improve the lubricating effect, reduce the friction between the machine and improve the practicability of the machine oil. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing graphene engine oil comprising (1) selecting material, (2) heating and stirring, (3) mixing (4) obtaining the semi-finished product, (5) filling by 0.05-0.1 wt.% graphene, 0.8-1 wt.% HSD, 10-14 wt.% boric acid ester, 0.03-0.05 wt.% metal powder microsphere, 0.01-0.04 wt.% benzotriazole, 0.01-0.02 wt.% di-n-butyl phosphite and lubricating oil base oil (balance amount), and the material is qualified product, firstly heating the boric acid ester selected in step (1), adding the boric acid ester and lubricating oil base oil obtained after heating in the stirrer, then stirring and dispersing for 25-30 minutes under the environment of stirring temperature of 50-60degrees Celsius to obtain dispersed base oil, and the stirring speed is 3000 rotations/minutes, the HSD in step (1) is added to the dispersed base oil in the step two for electromagnetic stirring for 30-35 hours, when the electromagnetic stirring is finished, stopping heating; wherein in the step four, adding the graphene material obtained in the step three in the step one, metal powder microsphere, benzotriazole and di-n-butyl phosphate into the mixed material obtained in step three, then stirring to obtain semi-finished product; wherein in the step five, placing the semi-finished product obtained in the step four in the room of the dry for 10-20 g, then filling the semi-finished product to obtain the finished product, and the humidity in the room of the dry is 20-30 %.