Sorry for the late response I just saw this, Cayenne has 110K on it, and runs sweet. the only issue was the oil separator diaphragm in the valve cover. I work on all my cars and the intake needed to come off, so took me a couple of days and $200 in parts.Dealer wanted $4k. Other than that its just been tires oil, and brakes with upgraded LEDs and stuff. Need to do the tranny service soon, that being quoted at $3k, unsure what I'll do there. Hope this helps.
Joe