Oil pan gasket and rear main

[JBNeal]

If you have heavy condensation in the crankcase, then it will start to steam out until it all boils away, and there will probably be blowby mixed in with that steam...there may be some additional blowby prior to reaching operating temperature, which ya might feel if the engine seems to have more power when warmed up...another side benefit albeit minor to a PCV installation is that steam can have a cleansing effect on the spark plugs