Its purpose is to maintain the correct internal pressure, as well as the volume of coolant in the cooling system, controlling the flow of coolant between the radiator and the recovery tank.
The condition of the radiator cap should be checked periodically or when an overheating problem occurs in your vehicle's engine.
The radiator cap has a certain pressure capacity and should not be changed arbitrarily. Always use the cap with the recommended pressure. The capacity of the cap is stamped on the bottom of the cap.
HIBARI® stands for confidence in engine cooling systems, thermostats, radiators, radiator caps and coolants.
EN 
ES