Hello everyone. It is a nice weather outside (NOT)!!! It is going to be -1 tonight. Should i worry about my inboard engine block? I already took my boat out a couple weakends ago and now my engine has fresh water ready to freeze in it. The boat is all the way besided lake simcoe. So i am wondering should i go there and re fill the engine with untifreeze or is it going to be ok for -1. What are your thoughts people. Any one "rewinterizing" their boats for the summer?