Yup. Boy, talking coolants are going to be opening up a can 'o worms... If I was back in sunny California, I'd be using water/wetter only but since I'm in VA now, I gotta either drain or refill with anti-freeze for the winter. And depending on the track day organizer, stuff like engine ice is allowed since it's not supposed to be as slippery but not sure if those products really live up to what they claim. Maybe one day materials and oil technology will advance to the point where we don't need to cool our engines anymore. But by then, I guess we'll all be riding silent electric bikes?! Then I'll need to add a playing card into the spokes so it sounds like something...