Hello, Hope all are well. Since I am stuck home thought this would be a good time to change the oil and filter. I looked at the oil breather on top of the engine and it looks grungy inside. Is there a easy/good way to clean it? would soaking in mineral spts or kerosene clean it. there looks to be a fiber inside and don't want to hurt it. It is a metal one with oil stamped in top. Don't know it that is orig or not. The engine has a pcv system so I would like it to breathe. Thanks for any guidence