MolaKule:
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And we are still awaiting for you, a declared fuel engineer .....
"Declared fuel engineer" - well, I declare, you *do* go on.
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.... with purported access to the SAE libraries .....
Yet another egregious implication that someone is being less than honest.
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..... to quote from your references giving data that esters cause rust and seal swelling problems, which is the topic of this thread.
I don't believe I wrote that "esters cause rust and seal swelling".
There were in this and the other thread, and not by me, posted some references (which you apparently have not bothered to look at) that both were concerns with polyol esters and some diesters, and I believe anyone working in the automotive field circa 1970-85 or thereabouts encountered plenty of anecodotal evidence thereof.
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All we have seen from you is inuendos.
All you (the "we" is a bit too regal) have seen from me is a simple request that you present a fully formulated motor oil with a modern ester base and some test results so there's a target to shoot at.
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If your real complaint is about cost, yes I can appreciate that.
Whether you can appreciate it or not, you made some vague references to economics. When asked for some fleshing out, some data, even a datum, silence.
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But that is not the topic of this thread, and we have yet to see anything of substance from you for the stated topic.
Or from you, for that matter.
And that's the point.
Now, Herr Doktor, since you're apparently going to make life miserable for and insinuate they're flakes, liars, child molesters, and worse anyone who dares to suggest you're not the Ester Alpha and Omega, the Penultimate word on lubrication, and otherwise pay due homage, this should wrap it up for you and let you get on with Life - whatever that is in your particular case:
I do not have access to a fully formulated modern ester based motor oil and sufficient engines, personnel, and ancillary equipment and supplies to make an evaluation of whether - in such a motor oil - esters cause rust and seal swelling problems. I have been unable to find any such evaluation conducted within the last decade.
Therefore, I have no opinion on whether esters cause rust and seal swelling problems in a fully formulated modern ester based motor oil.
Anything else?