What does oil emulsification mean?

[LeAllie]

Oil emulsification refers to the phenomenon where, after the engine has been running for a period of time, the oil changes from a translucent yellowish-brown color to a milky white, accompanied by foam. This results in the oil containing water and an increase in oil volume. Oil emulsification is related to the quality of the oil and the operating environment of the engine. When oil emulsification occurs in a vehicle, it is necessary to replace the oil promptly. However, before changing the oil, the engine should be cleaned—first the exterior and the air filter chamber, then the interior of the engine. It is important to develop good driving habits, such as warming up the car before driving and selecting the appropriate type of oil for the vehicle. Additionally, measures should be taken to prevent the engine's exhaust pipe from directly releasing into the atmosphere without connecting to the air filter. The exhaust pipe's opening should face downward and be securely fixed, ensuring it is not blocked.