Quote Originally Posted by kehecross View Post
If oil consumtion is also being caused by pcv, Then why does it take 50,000 miles for it to show up? I would say it might be a small part of the problem. Or are you saying that because the oil holes are plugged this causes the internal pressures to force the oil out?
PCV's are basically installed and built-in to compensate for increasing "blow-by" as engine's age. The older they get, the more blow-by...and need for pressure equalization.

IMO, the question is whether issues with ring design is causing pre-mature blow-by....and "engagement" of the PCV function.