Our antifreeze is carefully mixed with ethylene glycol and deionized water. It is specially designed to protect the ship's systems in extremely low temperatures and is suitable for cooling, engines, and drinking water systems. The usage method is extremely simple: 1. Ensure that the engine is completely cooled and the vehicle has been turned off. 2. Slowly unscrew the radiator cap to release the internal pressure. Check if the coolant level is between the "maximum" and "minimum" marks. Slowly add the antifreeze, avoiding exceeding the "maximum" mark. 3. Start the engine and run it at full speed for 3-5 minutes to remove the air from the system. After cooling, check the coolant level. And it can protect the ship's cooling system from damage caused by low temperatures. Cleaning Agent

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