First, find a reliable store to buy:
Oil agents are one of them. If you have a certain understanding of the agent's qualification and authorization certificate, it will greatly reduce the chance of being cheated.
The second point is packaging:
It is a very reliable method to distinguish true and false oil by packaging. Look carefully at the oil package to see if there is a disposable sealing cover. It can't be ignored that there is always tin foil in the gap.
There are raised trademarks on the tin foil of high-grade engine oil. If the oil drum is too worn and the edge of the pattern code is not clear, it is fake oil. Authentic products are very delicate, and the edges of patterns and words are very clear and neat.
Third, smell the oil and see what it looks like:
Light color, very transparent, and no impurities, no suspended matter or ups and downs, no irritating smell, indicating that it is real engine oil. On the contrary, it is false.
Extended data:
Domestic genuine engine oil is generally light blue, very shiny, and the flow is very uniform. On the contrary, such as uneven color and uneven flow, it is often fake or deteriorated engine oil. Imported engine oil is often golden yellow with a little blue, and it is also crystal clear.
Usually, domestic licensed engine oil is sold through formal customs declaration and factory support authorization, while parallel engine oil may enter the mainland in the form of smuggling or cross-selling. This difference should start with parallel engine oil.
Parallel imports are products that should not be sold in a certain area, or products that are sold directly in a certain area without formal agents.
Baidu encyclopedia-engine oil
Baidu encyclopedia-authorized engine oil