What Causes Oil Emulsification in the Civic?

[VanAnastasia]

The causes of oil emulsification in the Civic are as follows: Prolonged low-temperature engine operation: For example, frequent stop-and-go driving or prolonged idling can result in lower engine temperatures, and low ambient temperatures are also a contributing factor. When the engine operates at low temperatures, the fuel injected into the cylinders may not burn completely, particularly the gasoline that adheres to the cylinder walls. This gasoline can flow down the cylinder walls into the crankcase and mix with the engine oil, leading to oil emulsification. Internal corrosion of the oil cooler: If the oil and coolant passages become interconnected, the mixing of antifreeze and engine oil can cause emulsification. During engine operation, high temperatures are generated, and the heat carried away by the oil is exchanged with the coolant to achieve cooling. If the oil cooler is damaged internally, antifreeze can leak into the oil passages, resulting in oil emulsification. The solution is to replace both the engine oil and the oil cooler.