The Porsche N.A. recommended oil change at 15,000 miles did not help either !
The by-pass OEM oil filter is an issue.If that is not changed at every oil change .....
Using only 2 scavenge pumps creates oil-starvation in severe brake/decent+turn situations.
The very shallow sump & missing horizontal sump baffle didn't help.
The tendency of a flat 6 to whip up foam in the oil may be an issue made worse by the common use of high detergent oils.
The good news is, there are solutions & remedies for these problems IF you read the Forums diligently and ignore the nonsense.
Others with superior knowledge and experience will certainly be able to improve/correct on this list.
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