Why does the oil filling port appear emulsified?
December 14, 2021
Not long ago, I saw that quite a few riders reported a problem. It is said that there is a yellow-white object in the oil filler port of the car. It is not clear what caused it, and the riders who have followed the posts also expressed their views. Some riders said it was irrelevant, while others expressed concern about oil emulsification. So what causes this phenomenon?
First, understand what emulsification is. Emulsification means that the oil is mixed with water, which causes the oil to deteriorate and present a milky white symptom. Emulsification is equal to deterioration, which means that the emulsified oil cannot be used continuously, and it is easy to cause damage to the engine if it is used. According to the explanation of the riders, the oil in the oil tank is still normal, so the statement that the oil is emulsified can be ruled out. So how to explain this kind of phenomenon? In fact, when the engine rotates at a high speed, it will generate a lot of heat, which causes the oil in the oil tank to heat up and produces oil vapor. The outside air temperature is relatively low, and the water vapor in the adsorbed air is near the oil filler port. Emulsification caused by the mixing of evaporated oil vapor and condensed water formed in the air. This phenomenon occurs mostly in autumn and winter, and car owners can rest assured, as long as they use a clean paper towel to wipe the surface of the emulsion clean. Although this is also an emulsification reaction of oil, it does not affect the lubrication system. So car owners don’t have to worry too much.
