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In the car the grill that we see in front have a radiator behind it that helps cooling the engine.As you might be knowing that the engine burns the fuel to work so the engine is needed to be kept at a temperature at which the fuel do not catch fire until unless the spark plug ignite the fuel.

**Coolant keeps the engine at a normal temperature lower than the temperature at which the fuel in the engine ignite.

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Q: How does the coolant used in car engines protect the engine?
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