Agree with you!

來源: 於 2013-04-23 10:00:05 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

Agree. What he said contradicts to himself.  If the enigine can use both 0 and 20 then what's the problem with 5?  How tight are the engine parts so that 粘度5 is too thick?  if 粘度5 is too thick then how about 高溫粘度20?