It was the AOS.
One of the ways it fails is by a visual tear in the diaphragm.
But there are other ways, such as a detachment of the diaphragm from the sides of the housing and also having micro-tears which are almost invisible to the naked eye, yet allow for droplets of oil to pass through as liquid oil.
Happy Boxstering,
Pedro
Pedro Bonilla1998 Boxster 986 - 311,000+ miles:
[www.PedrosGarage.com]
PCA National Club Racing Scrutineer - PCA National HPDE Instructor - PCA Technical Committee (Boxster/Cayman)
Racecar spelled backwards is Racecar
"Racing is life. Anything before or after is just waiting" ... Steve McQueen as Michael Delaney in "LeMans"
"If you wait, all that happens is that you get older"... Mario Andretti
"Being second is to be the first of the ones who lose" ... Ayrton Senna