Where does the oil come from?

[flmont]

I was hot dogging my 02' 2.7 over the weekend coming down a small canyon road ,.I started smelling and seeing smoke from the rear,didn't have the issue going up hill just down hill,..I thought it was just oil vapers until I seen the smoke Vortexing behind me,..(I am sure they thought I lost a engine ). but got off the gas road flatten out and smoke cleared up and that was it..I have a new Porsche AOS just a few months old,I don't know if that's the problem but most likely it is for me anyway, at least Iam hoping that was it. I wonder if a 1st year engineer designed that thing,.it should have been designed with tubing inside and not a diaphragm.