09-08-2017, 05:34 PM
If you've been running with a boost leak that will cause the chra to leak oil as it'll over-speed the turbo trying to make boost. As Ru says, the restrictors are all for the ball-bearing turbos, hence why vag boys are all over it, because they love buying expensive shinies becauseracecar. The condition of the engine shouldn't make a difference unless it's pushing oil into the inlet, in which case try a catch tank.