all anitfreeze will work in todays engines with any radiator aluminum or brass just don't leave it in forever, change it every couple of years. Plain water is not good for the engine and other components it will cause corrosion and rust,and has a lower boiling point than
antifreeze water mix. You should use atleast a 20% mixture of anitfreeze to stop the rust and corriosion. Water will cool better than
antifreeze but it will cause too many problems. Water wetter will help with or without
antifreeze. Distilled water is best. If you can catch the water from the condensation line of your air conditioner it is distilled water