Probably from the oil pressure sender port.

 

Most engines have a spare galley port also...when you do the return make sure that it is above the oil level in the pan :thumbs:

 

Got your answer - ....

I wish I would have taken pics when my Hahn was up in the air...next time - I promise.

Basically, the oil line to the turbo replaces the plug. In order to change the oil, you have to remove the 90 degree elbow from the oil pan to drain it out. :thumbs:

If you lose it, it is a left 90 degree elbow available at http://kalecoauto.com/index.php?main_page=index

(It goes with the left-handed screwdriver...:glol: :rofl: :lol: ) I still love that site!!!!

 

For the oil sending line to the turbo........

Stand on the driver side of the engine. Look on the left side of the exhaust manifold. You'll see a series of allen bolts. Its right behind the water tube/pipe. I used the one closest to the firewall. Take that bolt off and use a fitting and adaptor to hook up to the oil feed line. :cheers: