What Are the Reasons for Low Car Coolant Levels?

[KathrynLynn]

Low car coolant levels can be attributed to two main aspects: external leaks and internal leaks. An external leak refers to coolant leaking outside the system, typically caused by loose pipe connections, radiator leaks, poor sealing of the radiator cap, or a damaged radiator cap valve. An internal leak occurs within the engine, usually due to a breach between the cylinder head gasket and the engine block. Car coolant, also known as antifreeze coolant, is designed to prevent freezing in cold weather, thereby avoiding radiator cracks and engine block damage caused by frozen coolant. Antifreeze is not just for winter use—it should be used year-round. As part of regular car maintenance, the engine coolant should be replaced every year.