How to identify the authenticity of Castrol engine oil

To be honest, according to the development of science and technology, it is really difficult to identify the quality of an engine oil from its appearance. No matter the packaging, anti-counterfeiting logo or font, the workmanship is so seamless.

However, this engine oil can really distinguish between good and bad. For some reasons, there are only two kinds:

① Discrimination before opening a bottle

Generally, when the engine oil shakes, it sounds loud and brittle, just like the sound of a bottle of mineral water. And good oil is sticky, and the sound of shaking will be completely different. When you buy it, you can shake it and compare it with each other. This is actually the simplest, most direct and best way.

② Some oils with good viscosity and color are not necessarily good oils.

This is to be opened. After adding the engine oil, see if there is black sediment on the bottom of the bottle. If there is, congratulations on winning the prize. It must be extracted from waste engine oil. Some good waste engine oil is changed into new engine oil after being filtered again. This kind of oil is really not good if it is identified by shaking, because its viscosity is still there, but it is lacking in color or temperature resistance and wear resistance. Therefore, in order to achieve profit, some people take filtering to get away with it.

finally, it is most reassuring to buy engine oil in a regular store.