[RKDinOKC]

The Cayenne has two oil drain plugs and are supposed to be replaced when changing the oil. Don't know if they have a seal rings that is supposed to be replaced as well, but assume so.

That is probably what makes it so expensive at the dealer.

How about draining an refilling the coolant on the newer water cooled cars. You have to raise and lower the front and rear of the car a specific amount to drain it. Have no idea what needs to be done to get all the air out refilling it.