There is absolutely zero evidence of leak in or around the engine bay.
It could be the rear main seal...however, I would expect to see some sort of weeping, smell something burning or have some other indication of a leak. There is nothing. And, two other owners are experiencing the same issue.. One replace the rear main seal and still had the problem...the other pulled the motor for a Stage III install and found no issues around the seal, nor any other signs of leaking.
That said...my problem could be totally different then theirs..
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