I suppose it's possible, but my vehicle hasn't experienced some of the more obvious symptoms associated with a bad PCV valve--no rough idle, fuel economy is still pretty decent (for a 2.0T), no black/blue/white smoke, no check engine light. I suppose that if even after all that it turns out that it's bad, then I will say it ain't because I didn't do regular oil changes. Guess I'll take a looksee at it when I have some time this weekend.Maybe pcv is not good? Change it and see what happens.
Good advice, although in my particular case the odds of that happening are slim to none--it doesn't get cold enough where I live and/or work for that to happen, plus I keep my car parked inside my garage when home, day or night; for the most part the only time it sits parked right outside my garage is when I'm washing it--LOL.A word to the wise... I learned this first hand...Make sure the hoses going from the engine to the catch can (both cans) doesn't have a low spot in it. What happens is water vapor will sit in the low spot and freeze during winter and effectively block venting of the crankcase causing the turbo oil return to backup and force oil out the seals into the exhaust and charge pipe/intercooler.