I have a question about the 30,000 mile tune-up. I just got off the phone with my local subaru dealer and they said that they have two different "tune-ups" One is a platinum package that has some sort of throttle body cleaner and some other stuff and the other one is just a normal 30,000 mile tune up. The platinum package is $569 and the normal one is $399. Is it worth it to get the Platinum package? Or does it really matter? Is this a reasonable price for this service? Thanks for all your help.