Have you guys ever heard of Liqui Moly Motor Oil 5w30??
It's European synthetic and with their studies are shown to reduce wear and increase engine cooling. It is a good price, 5L for $34ish at www.bavauto.com
they also have plugs on their for 12.95!
Thanks for letting me know about the special socket, would suck having my car apart and not the tool to pull the plugs!