Quote:
Originally Posted by aerohead
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1) Any 'high points' ( asperities ) would have have already interacted in service during break-in, and worn each other down 'smooth,' before the boric oxide film was ever plated on.
2) As soon as the asperities were knocked off, oil would flow over their former locations to 'plate' the metals surface.
3) From then on, unless the engine was neglected or abused, at least boundary region lubrication would be separating opposing surfaces from actual contact, by definition.
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Ah...
So... once engines are run in, they just stop wearing completely and last for ever?
Is that what you're telling us?
Quote:
Originally Posted by aerohead
4) If your motor oil is not getting 'darker and nastier-looking', then it has lost its detergent and dispersant additive package, and is doomed to premature failure.
5) And regardless of what the oil's anti-wear additive capabilities are, all the other protective additives will technically be 'gone' by 7,500-miles of 'normal' driving, or whatever interval is
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Or...perhaps the detergents and dispersants simply had nothing to do thx to the BA..?
As you don't actually know due to zero experience with BA in an engine;
It's up to you to prove this opinion of yours.