Hello, I bought a 1990 Subaru Legacy 2.2 from an estate sale in Montana. Anyways the last time they changed the PCV valve it looks like they did not put any anti-seize on the threads. And yes it is seized. I have tried penetrating oil. I am using a deep 19MM socket. I can not get it to budge. I even put a box end wrench on the rachet for some leverage but nothing. I do not want to break it any suggestions would be appreciated. Thank You in advance. Bob