Funny you should say that. The one and only time my Z has been to the dealers was for the "free" 600 mile/1000 Km oil change and they messed it up by over-filling it and spilling loads down into the radiator. I got oil all over my legs when riding home and it oozed out of the radiator for months after. That's why I mentioned it in the earlier post. They also over-tightened the chain too!