I decided to give Engine Ice a try despite the warnings of NCMount. and Indy. I never boiled the bike over with the stock E/G in the radiators. I put engine ice in it and have boiled it over three or four times. I added some water wetter to it, and it still boiled over, just less often. Yesterday I flushed the engine ice out and put in the premixed prestone stuff that they claim works with any color anti-freeze and has alum. protectant in it. I added a few ounces of water wetter to it as well. I'll report back with my findings. When in doubt, it pays to listen to mountain men.