1. Fall congeal degrees on mixture of KH150BS bodying oil with different base oil of different nature such as high viscosity index base oil, isomerization unit based oil lost and so on were studied. 进行了KH150BS与高粘度指数基础油、大庆加氢异构化脱蜡油等不同性质基础油调兑后对降凝剂的感受性研究,用倾点测定法考察其降凝效果。