I bought a Fram PCV on ebay couple months ago. It was wicked cheap. $8 if I remember correctly. I'm gonna replace it for the first time next oil change.

@cris, I cannot believe that Isuzu would purposely make an engine that burns a specific amount of oil. If so, thats weird. LOL! Its more likely that they only told people this in order to save their butts from hefty warranty expenses.