I just bought a 07 legacy specB with 89k on it. ill be doing the first oil change this weekend. Ill probably be running 5w40 Motorcraft syn-blend and see how it goes. Yea i know everyone is talking about M1, royal, rotella but ill go with motorcraft mainly because I work a ford dealership in northeast atlanta and it comes cheap with my discount and its pretty realiable. Ill keep you guys posted on how the motor likes it and see where I go from there.