Odd cause my filter was still red\pink, but the insides were dirty. I'm going to clean it out tomorrow and see if it comes back. mad.gif

 

Be sure to let it dry really well, not in the sunlight nor in a too hot ambient. After almost 24hrs of drying, apply the oil, I always apply A LOT of oil, then let it rest for some time (10 minutes) in different positions (upside down, etc) and re-lube it before final instalation.
Good luck.