Good move, George. A big freeze crack would surely be a heart breaker. I drained one tractor last week for the same reasons. It had clear water because I had been working on some leaks in the radiator. Now I have decided I want to replace the head gasket before I charge the system with anti freeze. All of the other euipment I have will already have anti freeze, but I like to retest the strength annually to be sure. We had ice on windshields two weeks ago, but no overnight hard freezes so far. Now batteries this winter will be another whole issue. I have ten more than I had last winter, and they are all new this summer. Ugg.
Charlie V.