A prommie for $200? Hook us all up! Kits are terrible in ALL situations, unless parts are unavailable, and you don't want aircooling whatsoever. Boom: If you have Water Wetter in your system, it does everything antifreeze does, but with much less. Antifreeze's main purpose is to prevent freezing or boiling, and, apparently, it does help with corrosion. However, it is more viscous than water, and that hurts.