The Function of Antifreeze?

2 Answers
MacEllie
07/25/25 9:29pm
Antifreeze serves the following purposes: 1. In cold weather, it prevents components from system failures or cracks due to cooling issues. It manages rust prevention and avoids excessive scale buildup that could block pipelines, offering functions such as anti-corrosion, anti-scaling, anti-boiling, anti-freezing, and anti-rust. 2. The full name of antifreeze is antifreeze coolant, meaning it has anti-freezing properties. It prevents the coolant from freezing and expanding during cold winter parking, which could otherwise crack the radiator or damage the engine cylinder block or head. 3. Antifreeze is a type of coolant containing special additives, primarily used in liquid-cooled engine cooling systems. Its freezing point varies with the concentration of ethylene glycol in the aqueous solution.
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VanMaria
08/11/25 10:19pm
Antifreeze plays multiple roles in a car. As someone who frequently works on cars, I can say its primary function is to prevent the coolant from freezing in extreme cold, which would otherwise make the engine unable to start, and to avoid boiling and engine overheating in high temperatures. Additional benefits include corrosion and rust prevention, lubricating the water pump, and protecting the entire cooling system. I recommend replacing it every two years or after driving 30,000 kilometers, with a 50% antifreeze and 50% distilled water mixture being the most suitable—too concentrated and it won’t dissipate heat well, too diluted and it won’t provide enough protection. Regularly check the fluid level and color; if it turns cloudy, it’s time to address it. Neglecting antifreeze can lead to engine overheating and damage, skyrocketing repair costs, so timely maintenance can save a lot of money and hassle. When replacing, choose a reputable brand to keep your car healthy.
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