原文章由 007 於 2012-5-24 10:55 發表
我覺得要說ma對4行程內燃機是否會潤滑不足,而不是單談速客達
汽油4t內燃機基本構造,汽車,速客達,檔車都是一樣的(一樣都有汽門,缸頭,凸輪,鳥仔,頂桿,凸輪,活塞,氣缸,ring,曲軸,幫浦....等)
還有單比較Total 4t 10w50與 10w60汽車油不太準,汽車油與機車油,就算同黏度,有時汽車油會較薄
有些是油特性不同,有時要說因ma關係而不順會些許牽強
那我用過某些汽車油,用起來較無力衰退快(衰退快是指新舊油的抑震,抑噪,加速,感覺落差大)也不代表所有車用油都這樣
我個人不太認為有ma因有人家說的止滑劑就對引擎零件潤滑減分
潤滑好不好大致是看基礎油+添加劑+油精煉程度
打個比方,那4T 300v 機車油會比大賣廠GTX汽車油潤滑差嗎?因為300v有ma所以就比較差?
那用ma的檔車呢?構造比速膠車更複雜,還多了變速箱,工作環境更嚴苛
如ma潤滑不好,那齒輪不就短命?
速客達加ma環島會刷缸,那檔車加ma油不就縮缸?
所以結論不覺得已經很明顯了嗎?
美孚官網還蠻多東西可以抓的
雖然很多人看過了~但是回頭看一下也是有點收穫
http://www.mobiloil.com/USA-English/MotorOil/Oils/Motorcycle_Oil_FAQs.aspx#FAQs1 So how is Mobil 1 for passenger cars different from Mobil 1 for motorcycles?
First, let's be clear about Mobil 1's overall benefits compared to those of conventional motor oils, whether for passenger cars or motorcycles:
Superior long-term engine protection.
Superior high-temperature stability.
Excellent low-temperature starting.
Outstanding engine performance.
Low volatility/low oil consumption
It's a little hard to generalize about the difference between Mobil 1 passenger-car motor oils and Mobil 1 motorcycle oils. That's because not all viscosities of Mobil 1 passenger-car oils have the same levels of zinc and phosphorus, and there are even greater differences among the three Mobil 1 motorcycle oils. In general, Mobil 1 motorcycle oils have:
Additive packages balanced differently for motorcycle engine and transmission operation. For passenger vehicles, fuel economy and emission system protection are higher priorities. These require low phosphorus systems and the use of friction modifiers. Motorcycle oils do not require friction modifiers for fuel economy and for better clutch friction less/no friction modifier is optimum. Motorcycle oils allow the use of higher levels of antiwear additives such as ZDDP (phosphorous).
其實重點都在最後一段
汽車油要求節能性、emission system protection
對ZDDP減量,添加friction modifiers來彌補潤滑性
機車油不要求使用friction modifiers達到很好的節能性、也不必管emission system protection
一方面減少對濕式離合器造成的低摩擦力...提供濕式離合器最佳的性能
而且機車油允許有更高濃度的抗磨損添加劑 EX : ZDDP
Okay. Let's start with Mobil 1 Racing 4T 10W-40. What does it offer that Mobil 1 for cars does not?
Mobil 1 Racing 4T 10W-40 is designed for sport bikes. Most of these bikes have multi-cylinder/multi-valve engines and use a common sump, which means the engine oil lubricates the engine, transmission and wet clutch. So unlike Mobil 1 for cars, Mobil 1 Racing 4T 10W-40 motor oil has no friction modifiers, which could lead to clutch slippage.
The motorcycle oil also has more phosphorus/zinc for enhanced wear protection at high engine speeds and high loads.
In addition, Mobil 1 Racing 4T 10W-40 has a high performance dispersant/detergent technology for better high-temperature performance and engine cleanliness. Mobil 1 Racing 4T 10W-40 is also offered in a different viscosity grade than Mobil 1 for passenger cars. (Updated December 2007)
其實我不知道止滑劑到底是什麼..
但是對friction modifiers減量/不放,應該就可以達到目的了
沒有friction modifiers、還有高量ZDDP...加強磨損保護
要防止離合器打滑、又不能損失保護性 => 看添加劑配方阿...
Mobil 1 15w50含有較其他汽車油高量的ZDDP...所以這支也強調保護性...
p.s 我印象中啦~版上好多前輩曾提到過汽車油因為對zddp減量、因此對其在機車/速克達保護性有所質疑
而版上開始提倡速克達應使用汽車油,達到較好的節能、保護性...
自此之後,開始出現機車油不利於速克達的保護性的心得...
[ 本文章最後由 ackdpe0776 於 2012-5-24 12:38 編輯 ] |