Quote:
Originally Posted by freebeard
I'm glad I decided to skip to the last paragraph. Something actionable at last.
|
Ah yes; PTFE
I have never got into the science here. IIRC there where issues..?
BA forms that hard, chemically inert, self fixing, oxide layer that none of the other solid lubricants do.
So lets say you have this BO layer on your engine and 2 high points somewhere touch causing the oxide to be shorn off:
The oxide particle/s reacts with water in the oil forming BA again and the BA, with no metal surfaces left to react with, reacts with that same bare spot (sans high point) again.
Judging by the look of the oil alone: The BO layer formed really does stop corrosion.
The oil just refuses to go that dark, old colour.
In my experiments this worried me in that: "We are at 20 000km (IIRC) since the last oil change! I don't care how good the oil looks; now I'm changing it!'