更正：是关系不大。黑不代表所谓的"脏"

来源: 于 2012-05-27 09:47:14 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

 

In general, the color of an oil does not have any bearing on its lubrication ability or whether or not the oil is suitable for continued use*.