What Causes Engine Oil Emulsification in Cars?

1 Answers
BriellaFitz
07/24/25 9:26am
Engine oil emulsification occurs when water enters the engine. This issue is unrelated to the engine itself but is connected to the quality of the oil and the operating environment of the engine. Emulsified oil loses its lubricating properties and must be replaced, but the engine must be cleaned before replacement. Methods to prevent oil emulsification: 1. Develop good driving habits, such as warming up the engine before each use; 2. Use oil suitable for your vehicle; 3. Regularly inspect areas like the air filter, especially in northern or humid regions. It is recommended to disconnect the engine's breather tube from the air filter and vent it directly to the atmosphere, but the open port on the air filter must be sealed. The breather tube should be fixed downward to prevent rainwater from entering.
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