What are the 5 Major Functions of Coolant?
3 Answers
Coolant has the following 5 major functions: 1. Cooling function: Cooling is the basic function of coolant. When the engine is running, it generates a large amount of heat, with 60% of this heat being dissipated into the surrounding space through the cooling system. 2. Anti-corrosion function: It helps prevent and reduce corrosion in the cooling system. 3. Anti-scaling function: Scale in the cooling system originates from cations such as calcium and magnesium in water. Under thermal load conditions, these alkaline earth metal cations easily react with anions in water to form scale. 4. Anti-freezing function: In winter, when temperatures are low, substances that can lower the freezing point of water are used as antifreeze to ensure the cooling system does not freeze in cold weather. 5. Heat dissipation function: The heat dissipation function allows the coolant to provide efficient heat dissipation, carrying away excess heat from the engine to control the temperature of key metal components.
As an experienced car owner, I've found that coolant serves far more purposes than just antifreeze. Its five core functions are: 1. Engine cooling - prevents overheating during high-speed driving or hot weather, avoiding boiling damage to components. 2. Freeze protection - maintains liquid state in winter to prevent expansion cracks in the cooling system. 3. Corrosion prevention - added inhibitors protect the radiator, water pump, and channels from rust. 4. Boiling point elevation - reduces summer boiling risks and pipe bursts while ensuring cooling efficiency. 5. Water pump bearing lubrication - ensures smooth circulation and extends lifespan. I've experienced failures from neglected coolant changes, resulting in temperature spikes and costly repairs. I recommend changing every two years using premium brands - never cut corners. This humble liquid is an invisible shield for your car's health that shouldn't be overlooked.
In maintenance practice, the role of coolant cannot be overlooked, with five key points: Heat dissipation is paramount, as it rapidly carries away engine heat to prevent burning; Freeze protection ensures fluidity at low temperatures to avoid ice damage; Corrosion prevention contains chemicals to resist rust and extend component lifespan; Boiling point stability raises the boiling point to prevent dangerous boiling; Lubrication assistance helps the water pump operate smoothly, reducing wear. Many car owners neglect inspections, leading to leaks or failures that cause water pump seizure and repairs. Always use manufacturer-recommended fluid and avoid mixing incorrect types to prevent contamination. Regularly monitor fluid levels to avoid trouble and ensure peace of mind.
