So from what Eddie and Dean have said the problem does exist with diesels. Great.
Another thought. All diesels and most GDIs are turbocharged. The MMC motor is not. I wonder if that will have any impact on the problem.
I suppose the answer, if possibly illegal, is to remove the crank case ventilation pipe from the inlet manifold, seal the access point and take the crank case ventilation pipe into a nice collection pot which can be emptied from time to time.
