My techician replaced my Aurora 4000 that failed about 2 months ago, running good now but since that time I have been seeing a drop inb my driveway and thought it may be some of that oil from the first 4000 that blew with a oil seal failure and let that drip off for a while. Still I see a drop of oil now and checked the source of the leak,,,it was oil coming from up on top on the valley in the rear ( top of mainfold of engine)right under the Aurora, I could see the oil line going under the turbo. There is some wetness of oil down the oil line,,,,is that the gasket leaking? Wondering if anyone had the same issues of a leaking gasket after installation? The oil line has two bolts that bolts under the turbo.