Originally posted by JSmith:
Isn't the job of the PCV valve ...
Or is there more to it than that?
Yes. That is exactly the how & why.
Also with a properly setup PCV system you could make more power (better ring seal, less crankcase pressure behind the pistons)
This is why the system is retained. It is just now "filtered" as well.
I just emptied my tank. 1+ oz in 3 weeks(800 miles). Neglible pan loss (.5% of ~200 oz capacity)
However when you think of dumping 1 oz of oil down the intake it does seem like a lot.
That's like dumping a 1/2 quart of oil in every year (10k miles).