Is it necessary to replace antifreeze in winter in northern regions?
2 Answers
Antifreeze needs to be replaced in winter, as antifreeze is not divided into summer and winter types. Antifreeze: Automotive antifreeze coolant has the functions of preventing freezing in winter and boiling in summer, as well as anti-corrosion, anti-scaling, protecting the engine's cooling system, improving heat dissipation, and enhancing engine efficiency. Therefore, antifreeze is not only used in winter but should replace water for engine cooling throughout the year. Selection of antifreeze: Choose the freezing point based on the environmental temperature conditions of the vehicle. The grade of antifreeze corresponds to its freezing point, and generally, the freezing point should be about ten degrees lower than the lowest winter temperature in the local area.
Before winter arrives in the north, I make sure to thoroughly check the condition of the antifreeze. The main functions of antifreeze are to prevent freezing and rust. If the concentration is insufficient in extreme cold, it may freeze and expand, potentially damaging the radiator or engine components, which can be extremely costly to repair. I usually test the freezing point, either by using a small hydrometer myself or getting help from a shop, to ensure it's safe below -25°C. Generally, factory antifreeze can last three to five years without issues, but if the level is low, the color turns dark, or there are impurities, it's time for a replacement. I keep some concentrated antifreeze on hand for top-ups, which is both convenient and ensures safety. Winter driving comes with higher risks, and a simple check can save you from major repair costs. Don't skimp on this small expense—keeping your engine in good condition is what gives you peace of mind.