choy,

nabasa ko before here sa board na mineral water contains minerals that could harm your radiator...that's why the best pa rin ang distilled...ako i used SM Bonus or absolute distilled water, cheap lang naman sya.

icon, saw that PEAK coolant sa PriceSmart. Will try it nga next time :lol: Para sure ka, yun pre-mix na lang bilhin mo, no need to add water.