Quote:
Originally Posted by aerohead
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1) here again, they're not testing a commercial motor oil, and there's no mention of testing for chemical compatibility of additive packages which would be found in commercial motor oils; a violation of Dr. Erdemir's conditions.
2) they're interested in 'SEVERE' conditions in which 'high-point' might be achieved, not in 'NORMAL' operation.
3) in 'NORMAL' operation, at least a nanolayer of oil would be separating metal surfaces, boundary lubrication would be at play, with zero metal-to metal contact.
4) the 75W-90 gear oil testing is not germane to 'engine oils', as transmissions, transaxles, transfer cases, rear axle/differentials etc., are not subjected to the same conditions as are experienced within internal combustion engines.
5) we'll have a discussion in the future about 'how it worked so well' for you.
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Polyalphaolefin 4 (PAO 4) is a synthetic oil used as a base stock and viscosity builder in Engine gear and motor oils etc.
So:
An admission that it works very well with the 2 main additives in most engine oils.
And we are now on to:
Yes but what about the other stuff?
Is this correct?
I NB that
people mix different brands of engine oil all the time, adding a can of whatever the gas station has on hand to the engine when the oil's low.
It would
seem then that, while ill advised,
there are no disastrous effects from this age old practice.
In fact; one might go so far as to say that the
oil makers avoid using substances likely to clash disastrously with their counterparts.
Including Borate Esters, that react with the water in engine oil, to form BA.
Can we not..?
So why don't YOU list all the various:
- Rust and corrosion inhibitors (BA does this)
- Detergents
- Friction modifiers (BA does this)
- Antiwear agents (BA does this)
- Viscosity index improvers
- Pour point depressants
- Foam depressants
- Oxidation inhibitors
used in engine oils, along with their chemical reactions with the weak Lewis Acid; Boric Acid (reaction products) at the temperatures and pressures found in engines.
Remember;
unlike you, I tested BA and I say; it works incredibly well.
Therefore:
It's up to YOU to find proof that I am either a liar or delusional.
(That's another question you have studiously avoided answering btw, although it is implied)