A coolant flush is recommended every 2 years, because the performance of coolant will degrade with time. The range of temperatures over which it will protect the engine will decrease. So it might freeze during the winter and overheat during the summer. Coolant can also breakdown causing acidity to increase. The acid will attacks different metal parts in the engine, most commonly causing radiator, heater core or head gasket leaks. In addition, sludge can form in coolant due to high silicate drop-out, which can clog your car cooling system and drastically decreases its efficiency. This procedure consists of the following:
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