The filling of genuine oil is machine operation, and the control is very precise. The weight of each bottle is almost the same, but most fakes are filled manually, with different weights. We can weigh several bottles of engine oil at the same time and check their weight differences. If the difference is too big, it can almost be judged as fake engine oil.

2. After determining the engine oil, look at the packaging.

I once heard a professional say that it is a very reliable method to distinguish the authenticity of oil through packaging. Be sure to look at the oil package carefully to see if there is a disposable sealing cover. It can't be ignored that there is always tin foil in the gap. There is also a raised trademark on the tin foil of senior engine oil. The oil drum is worn, and the edge of the pattern code is not clear, which is even less true. Authentic products are very delicate, and the edges of patterns and words are very clear and unified.

Smell the oil and see what it looks like.

If the color is light, very transparent, without impurities, suspended matter or ups and downs, and without irritating taste, it can basically be judged as true. On the contrary, it is false.

Extended data

Harm of fake engine oil

1, lubrication reduces wear;

There is rapid relative sliding between piston and cylinder and between spindle and bearing bushing. In order to prevent the parts from wearing too fast, it is necessary to establish an oil film between the two sliding surfaces.

There is an oil film with sufficient thickness to separate the surfaces of relatively sliding parts, so as to achieve the purpose of reducing wear. If fake engine oil is used, this effect will not be achieved, and the engine wear will be aggravated and the faults will continue.

2, the engine temperature is too high:

Because the specific heat value of engine oil is low, and it is inside the engine, it has no cooling effect itself. However, due to the heat generated by fuel combustion in the engine, when the engine is working, the engine oil can bring the heat back to the engine oil tank and then radiate it into the air to help the water tank cool the engine. The heat transfer of fake engine oil is difficult, which may easily lead to excessive engine temperature, reduced service life and excessive water temperature.