Daqing crude oil production using a high viscosity index base oil and 25 oil-based transformer oil, add antioxidant, anti-rust additives, such as by modulation.

• 采用大庆原油生产的高粘度指数基础油和25号变压器油为基础油，加入抗氧、防锈等多种添加剂调制而成。