And he was very understanding, since he didn't want me to blow up in front of a room full of customers...He checked out the engine bay and I explained some stuff, he called the kid over and then told him to leave after the kid said what happened and then asked me what kind of compensation I would like. They didn't ask about the courtesy check and just did it, so next time I know for them not to touch anything but my wheels. I didn't want to be the asshole customer trying to get over on them but it was annoying to wait even longer and have to help clean up their fault, however an extra 10% off seemed to suffice. I'm lucky I double checked or else I'd be on the side of the road with no turbos, no engine and a lawsuit. The manager even said that if there is mechanical problems in direct correlation to the mishap that he is willing to talk to me because they would be liable... MidOhio - thats a good idea of the modified dipstick. Got any pictures? I've noticed the dipstick is hard to read sometimes and that one side generally has a different level than the other...