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191问答库 > 耐高温性能上PAO是不是比三类全合成机油控制的好？

耐高温性能上PAO是不是比三类全合成机油控制的好？

2025-03-15 13:34:13

推荐回答（1个）

回答1：

耐高温表现上，四类PAO基础油要比三类全合成好很多，分子结构更加优秀和稳定，在高温环境下，PAO基础油油温保持的更好，所以PAO基础油的高温剪切值普遍很高，而半合成或全合成机油要把高温剪切值做高必须用特殊添加剂，但是添加剂用多了清洁能力就会变差，PAO相对来说更高端
也更贵

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