Motor2u.com - Normal tap water will corrode the radiator and cause the whole cooling system to fail. PRO TIP - For a hot country like Malaysia, it is not neccesary to put
![cooling system - Running with straight water as coolant in the summer. Is it fine? - Motor Vehicle Maintenance & Repair Stack Exchange cooling system - Running with straight water as coolant in the summer. Is it fine? - Motor Vehicle Maintenance & Repair Stack Exchange](https://i.stack.imgur.com/rPQj0.jpg)
cooling system - Running with straight water as coolant in the summer. Is it fine? - Motor Vehicle Maintenance & Repair Stack Exchange
![COOLANT ,DISTILLED WATER OR TAP WATER. HOW TO FILL COOLANT IN CAR RADIATOR. SWIFT/ DZIRE OR ANY CAR. - YouTube COOLANT ,DISTILLED WATER OR TAP WATER. HOW TO FILL COOLANT IN CAR RADIATOR. SWIFT/ DZIRE OR ANY CAR. - YouTube](https://i.ytimg.com/vi/SlAEMGcGIRg/maxresdefault.jpg)