▎ 摘　　要

NOVELTY - A graphene lubricating oil comprises 100 pts. wt. base oil, 0.1-2 pts. wt. graphene, 0.01-0.5 pt. wt. monocrystalline wafer nano yttrium aluminum garnet, 2-5 pts. wt. dispersant, 0.5-2 pts. wt. viscosity index modifier, and 0.3-1.5 pts. wt. defoamer. USE - Graphene lubricating oil. ADVANTAGE - The lubricating oil has low friction coefficient, good lubricating performance, uniform dispersion, and stable system. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the lubricating oil comprising weighing raw materials, taking half of base oil, adding dispersant and defoamer, and shearing at 3000 revolutions/minute (rpm) for 30 minutes; taking remaining half of base oil, adding graphene and monocrystalline wafer nano yttrium aluminum garnet, shear mixing for 2 hours at 5000 rpm, and homogenizing; and mixing prepared components, shearing at 4000 rpm for 1 hour, and adding viscosity index improver.