What does oil emulsification mean?

[MarianaRose]

Oil emulsification refers to the phenomenon where the engine oil turns milky yellow or milky white, resembling yogurt in appearance, and may also have some bubbles. Here is relevant information: 1. Oil emulsification can indicate the presence of water in the car's engine. This is not related to the engine itself but is associated with the quality of the oil, weather conditions, and the engine's operating environment. If oil emulsification occurs, the oil must be replaced immediately, as emulsified oil loses its essential properties and cannot be used. 2. When replacing the oil, ensure the engine is cleaned beforehand. Clean the external air filter chamber, waste gas pipe, engine carburetor, and also inspect the exhaust joints. For internal engine cleaning, if possible, open the right cover to clean the engine oil sump. If this is not feasible, you can fill the engine with kerosene, start the engine, then shut it off, and repeat this process. The running time should not exceed 30 seconds. Then, replace the kerosene with fresh kerosene and repeat the process.