When to Add Antifreeze?
4 Answers
Antifreeze should be added when its level is below the standard mark. This liquid must also be antifreeze to ensure it does not freeze at low temperatures, as freezing can cause severe engine damage. Generally, antifreeze should remain unfrozen at least at -30 degrees Celsius. The coolant reservoir has MAX and MIN level marks. Add antifreeze when the level is below the MIN mark when the engine is cold. The amount added should be based on the reservoir's marks, ensuring it stays between MAX and MIN. Additionally, after a certain period, typically 3-5 years or 60,000-100,000 kilometers (depending on the vehicle model and manufacturer's requirements), a complete replacement of the antifreeze is necessary. Antifreeze prevents the coolant from freezing and cracking the radiator or damaging the engine cylinder block or head during cold winter parking. Antifreeze is not only used in winter but is required year-round. The engine and its cooling system are made of metals such as copper, iron, aluminum, steel, and solder. These metals, when in contact with water under high temperatures over time, can corrode and rust. Antifreeze not only avoids causing corrosion to the engine cooling system but also has anti-corrosion and rust-removal functions.
I've run an auto repair shop for decades and encountered many scenarios involving adding antifreeze. Generally, you should top it up when the coolant level is low – you can regularly check the markings on the overflow tank; if it's below the minimum line, it indicates insufficiency. Seasonal changes are critical moments, especially before winter, as antifreeze prevents freezing and pipe bursts. Additionally, during maintenance cycles, manufacturers recommend replacement or inspection every two years, which is the ideal time for refilling. Don't overlook details – incorrect mixing ratios can corrode engine components. I've noticed that high summer temperatures also lead to evaporation, so remember to add coolant when the engine is cold after driving to avoid burns from hot steam. Insufficient coolant levels may cause overheating, with repair costs easily running into thousands.
Buddy, as a car enthusiast, I often tinker with my own car. Adding antifreeze is a piece of cake—just check the overflow tank level below the mark and top it up casually. I make sure to add it when seasons change, preventing overheating in summer and freezing cracks in winter. Usually, I take a quick glance at the tank before driving and pour in the mixture if it's low. Don't forget, a 50% concentration is ideal; too low won't prevent freezing. Once, I procrastinated until it got cold before adding, nearly bursting the cooling system, but luckily I topped it up in time. I recommend keeping a small bucket in the car for easy top-ups. The maintenance manual says to replace it every two years, but checking more frequently is more practical.
As a long-time car owner, I've learned from experience that it's best to regularly check the coolant level. The coolant overflow tank is located near the engine, and you should top it up when the level is below the marked line during a cold engine check. The safest times to add coolant are before winter or during routine maintenance, as antifreeze prevents engine freeze damage. Don't wait until the warning light comes on – by then, internal parts may already be corroded. For safety, I always ask the mechanic to test the concentration during maintenance; as long as the level is adequate, it's fine. Simple and practical, this avoids roadside breakdowns.
