Bluish white smoke while driving

[78F350]

I know it's I'm not giving you guys a lot to go on but what should I check? I read that this might be a bad air oil separator, but I have no idea.

Here's the AOS DIY at Pelican Parts. It has good pictures and info: Pelican Technical Article: Boxster Air / Oil Separator Replacement - 986 / 987

The spark plug tube are often a cause for an oil leak, but not for white smoke.
Here's a great thread discussing the replacement of the tubes:
http://986forum.com/forums/diy-project-guides/52150-spark-plug-tubes.html
Probably a good idea to do it while you have some down time if they haven't been replace yet.