如果連Motul 300V都出包,那小弟相信那已經不是單純油的問題了 =口=!!
話說coast大大,該不會您看原文文章都是用Google翻譯吧
句子很不通順耶,一些單字也翻得很怪,weight在此不是指重量而是SAE的黏度番號耶...
後來又在研究了這篇文章,都一直忽略的一個重要的東西
關於Recourse的引用,必須為primary、secondary才具有價值
有關於Mark Lawrence的背景
I am not a lubrication, filtering, chemical or mechanical engineer. I have a degree in engineering, but I studied electrical engineering. I now study physics
而其中他所研習的物理是理論物理(theoretical physics),也就是說他的學術背景和機油一點關係都沒有
所以由他所撰寫的文章只能算是tertiary sources,是無法被qualified
但仍具有一定的參考價值
同時小弟在搜尋其中的油品時發現到了一篇文章
Motorcycle Motor Oil by Mike Guillory
http://www.vfrworld.com/tex_vfr/tech/oil.htm
其中作者的背景
The author is a Chemist, retired from a major Oil and Chemical Company, after a career in the Quality Assurance of Fuels, Lubricants, and Chemical products. He and his wife both ride.
這是可以被認可的secondary source
這篇文章看完後可以發現,各大石化大廠的說法都和他吻合,而Sport Biker的說法和實驗結果也相符合
且比較Mark Lawrence和Mike Guillory所撰的文章裡面有部分相符
可以推測Mark Lawrence在撰寫這篇文章時也有參考到Mike Guillory的文章
話說Mike Guillory的文章也打破了小弟的幾個觀念
其中各位最有興趣的可能是關於機車油的訂價(motorcycle)為何高於汽車油(automobile)?
Why are motorcycle oils so much more expensive than automotive oils?
Cost of doing business is higher per quart of motorcycle oil. Large oil companies make so much more product that their profit margin per quart does not have to be so high. That's why the newer motorcycle oils being marketed by some oil companies are only marginally more expensive than their automotive counterparts.
和機油內容物沒什麼關係,都是市場和商業機制的結果=口=!!
一直以來小弟一直以為是friction modifier配方試驗在作怪,原來根本是子虛烏有...
看來之前的一兩個回覆要改了~"~
這篇文章可以看一看,內容已經寫得很簡單易懂了~
Mobil vs Castrol,如果有大大英文不通的也有中文版可以看
http://www.lllube.com/ch/Article.asp?AID=4
雖然資訊沒有比原文網站齊全,但至少也可知個大概~ |