Hi, just a quick question before i go ahead connecting the oil feed, Just to be 100% sure!

This is a T3/T4 Turbo, is this square hole in the picture the oil return, or the oil Inlet.
The other hole on the other side is a round threaded Hole.



Thanks

 

that in the pic is the return.

 

Nice 1.
I thought so, but just wanted to be sure

Thanks alot