... down, turn on the radiator cover, open the outlet valve, release all the old coolant.2. Wash the cooling system with radiator cleaner or clean ... rubber tanks.3. Close the outlet, fill the radiator with anti-freeze coolant.4. Start the engine, heat the car for 10 minutes, ... when it's temperature is too high, avoid the water vapor spray from the radiator hurting people.2. Drinking is forbidden, if ...