How to Identify Engine Oil Emulsification?
1 Answers
The following are methods to identify engine oil emulsification: 1. Pull out the dipstick and observe the small amount of oil it brings out. If the color appears significantly cloudy or milky, it indicates that the oil in the tank has emulsified. 2. There is another situation where the small amount of oil on the dipstick does not show emulsification, but emulsification occurs on the inner side of the oil filler cap. In this case, there is no need to worry, as it is a normal phenomenon. Below are the reasons for emulsification on the inner side of the oil filler cap: 1. When the engine is repeatedly operated in a state where it cannot fully warm up (coolant temperature below 80°C), such as during low-speed short-distance driving or at temperatures of 10°C for 30 minutes, a small amount of condensation water inside the engine cannot evaporate and mixes with the engine oil. 2. Emulsification may occur on the inner side of the oil filler cap and other areas. After the vehicle is driven at medium to high speeds and the engine fully warms up, the small amount of water mixed into the engine oil evaporates as the oil temperature rises, and the emulsification disappears. This is also a normal phenomenon and definitely not a quality issue. It will not affect the lubricating performance of the engine oil nor the performance of the engine.
