The refrigerator oil of the present invention contains an oxygen-containing base oil and a viscosity index improver, and has a viscosity index (VI) of 200 or more and a volume resistivity of 1 × 109 Ω·m or more.
本发明的冷冻机油含有含
氧基础油和粘度指数改进剂,其粘度指数(VI)为 200 或以上,体积电阻率为 1 × 109 Ω-m 或以上。