What Causes Low Car Antifreeze?
2 Answers
Low car antifreeze is caused by leakage. Damage to the radiator gasket, loose connections at the overflow tank, water pump mating surfaces, or any pipe fittings in the cooling system can lead to antifreeze leakage. It is necessary to promptly visit the nearest auto repair shop for maintenance; otherwise, the radiator will quickly run low on antifreeze. If the antifreeze level is insufficient (below the MIN mark), it will not provide adequate cooling, which can easily lead to "boiling over" during high-speed operation. The full name of antifreeze is antifreeze coolant, meaning it is a coolant with antifreeze properties. It prevents the coolant from freezing and expanding in cold winter conditions, which could crack the radiator or damage the engine cylinder block or head.
Last month I noticed the coolant level in the reservoir was a bit low, and I was wondering what was going on. Normally, coolant shouldn't just disappear for no reason—it's most likely due to a leak or evaporation. For example, aging radiator hoses or worn-out water pump seals could be the culprits, and these areas need careful inspection if there's a leak. Also, during long drives or hot weather, evaporation can be faster, and you might forget to check after topping it off. Additionally, poor-quality coolant or using the wrong type can speed up consumption. Later, I checked the radiator cap myself and found it wasn't tightened properly, causing a slow leak. If you run into this situation, don’t hesitate—top it up with proper coolant and get it fixed at a shop as soon as possible. Otherwise, engine overheating can lead to serious trouble, and repairs won’t come cheap. Make it a habit to check for stains on the ground after parking—it can save you a lot of hassle.
