I just made an appointment to have my oil changed, and was asked if I was bring in the car for my 15000 maintenance. I wasn't even sure what that entailed, however, I didn't ask the man. I want to avoid these package service deals that do unnecessary services on my 2005 Prius. What are the recommended service levels per the owners manual? (I don't have my manual with me). What standard services have you had done on your Prius? -Scott