ORIGINAL: merugo
Jens,
I see you try to fullfill your ignorance of the matter by copying books . Ugo
Yes, i am ignorant because i am car mechanic and we in carshop has course about oilproducts, viscosity etc from Shell Norway once time every year arranged by Bertel o. Steen A/S, importer of Mercedes and Peugeot cars who are our specialist in our carshop.
One answer:in confidence, when at school you were accustomed to copy other's work?
I am book collector. I ended at scool for car mechanic in 1989 then worked as car mechanic to present.
It is uneccesary to be desperate to show you are clever than all folks in RCU when you are writing a long post here then we can find some of them are unfamiliar with facts and knowledge of us here in RCU.
I am seeking after facts before i can answer, never from head full of fantasy as someone can do it when they are writing a new post..
As we say: Trust are good, but control are best!
Jens Eirik