Good point, I had forgot about mites and how soaking is a good treatment for that. As to the losing oil issue, and I am in NO WAY being argumentative or trying to be an ass - is this just advice that has been passed around or is there some science out there than can back it up? I did my undergrad in ecology and am working on a master's in rangeland ecology, and you'll have to forgive me here but as a result of my schooling, field work, lab work, etc. I don't believe claims that aren't backed up by some type of science, be it a publsihed, peer reviewed study or just someone's personal experiences.