When you Fuel is burnt inside the run your car engine, it produces a lot of heat. Only a part of it gets converted into power. Out of the rest of the heat, some part rejected out of the engine through the hot exhaust gases, while the balance keeps heating the engine parts. We need a radiator to keep the engine cool and continue performing.
Apart from cooling the engine, a coolant performs the following functions:
1. Capable of providing Anti freezing properties and boiling protection
2. Protection of metals against corrosion