If there is an oil leak, there must be oil stains. Here I will talk about the analysis of oil stains first, and then the determination of oil stains. We know that there are five kinds of gasoline, engine oil, brake fluid, gear oil and booster oil in cars. I will not introduce the color and smell of gasoline. The oil is bronze with high viscosity.
There are six types of oil leakage
Splash oil: up, down, left and right all around there are traces, irregular and large area.
Obvious oil leakage: when a large injection drips down, there will soon be a large pool of oil below, oil in the middle, and gradually desalination around.
Oil leakage: drip, there will be a big pool of oil below with time, black in the middle but no oil, and gradually fade around.
Hanging oil leakage: oil is often hung at the leaking place, and does not drip. But over time, there will be a small pool of oil below, black in the middle but no oil, and gradually fade around.
Oil leakage: there is no oil drop at the leakage place, and there is a black oil mark around. According to the degree of oil leakage, there is also a black mark in the middle, and the oil gradually fades around and is just a light oil mark.
Yin oil leakage: the difference between Yin oil and leakage oil is that there is no clear leakage point. It is just a light oil stain. If it is stained with ash, it will become a black wet area.
