What Causes Antifreeze to Enter the Engine Block?
2 Answers
Antifreeze enters the engine block due to the following reasons: 1. Cracks in the engine block caused by high temperatures; 2. Natural aging and cracking due to prolonged vehicle use; 3. Aging or failure of the engine and radiator gaskets or rubber sleeves, leading to leaks; 4. Personal error, such as mistaking antifreeze for engine oil and adding it to the engine. Antifreeze is a coolant containing special additives, primarily used in liquid-cooled engine cooling systems. It offers excellent properties such as freeze protection in winter, boil-over prevention in summer, and year-round protection against scale and corrosion. The car engine is the device that provides power to the vehicle, serving as the heart of the car and determining its power, fuel efficiency, stability, and environmental performance.
I've encountered many cases where coolant leaks into the engine cylinders, mostly due to failed cylinder head gasket seals. The engine operates at extremely high temperatures and pressures, and over time the head gasket can age, deform, and crack open coolant passages and oil channels, allowing coolant to directly seep into the combustion chamber. Sometimes during engine repairs, if the cylinder block surface isn't properly cleaned or if the cylinder head bolts aren't tightened in the correct sequence with uneven torque, it can also lead to poor sealing. Additionally, warped cylinder heads or sand hole cracks in the engine block's water jacket can cause this issue. When coolant mixes with engine oil, it's particularly troublesome - you'll see white smoke from the exhaust, the oil turns milky like milk tea, and the car noticeably loses power. This situation must be addressed immediately, otherwise prolonged neglect could lead to complete engine failure.
