Well, my PCV OCC is half full again already and it looks orangeish, so it must be the condensation from not getting up to operating temperature on my trip to work in the cold weather. It never changed color until the weather took it's nose dive for winter.

 

Thats why I use Mobil 1. It has lots of Boron in it. It helps with the condensation and acids that build up in the crankcase.

 

http://neptune.spacebears.com/cars/s.../oil-life.html

For a comparison and breakdown of the two top synthetic oils, click on the link.....