更正：是關係不大。黑不代表所謂的"髒"

來源: 於 2012-05-27 09:47:14 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：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*.