Ive had a Greddy oil catch can on for some time now (with stainless scourers in a stocking as filter) and its worked pretty well. When i run higher boost it catches a bit of oil, most being about 10-15ml from some runs at willowbank. On standard boost its totally clean.
But i noticed i still get a bit of oil in the intercooler piping, it pools where the rubber joiners are.
Photos of my catch can setup are in the gallery, its the typical recirculating setup.
Except i know there isnt any oil getting past the catch can because the pipe going in is oil stained, and the pipe going out is completely clean.
I recently had a good look at my turbo and it seems to be in great condition, so why am i still getting oil in the intake and intercooler piping?
Im using Motul 300v Chrono which is 10w40, and the most boost ive run is 0.9bar