Coolant fluid is designed to remove excess heat from an internal combustion engine. When an engine is running, it converts only one third of the energy derived through the combustion of fuel into a power that moves the vehicle. The remaining are converted into heat which either foes out with the exhaust or remains in the engine. The coolant fluid will then absorb the heat in the engine, channel it into the radiator, which will then be dissipated out of the vehicle. Coolant fluid also serves as a lubricant for the pump bearings and rotor, and helps prevent oxidation and rust.

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