How does Shell check the authenticity?

Inquiry method for authenticity of Shell engine oil: 1. Check the anti-counterfeiting label on the engine oil to identify the authenticity. 2. After the label is torn off, you can look at the back of the label from different angles and it flashes red. 3. There is a unique anti-counterfeiting number on the surface of the torn label. You can call 4008880500 or send a message to 10669582 10885, and enter the number according to the prompt to verify the authenticity of the product.

Other authenticity inquiry methods of Shell engine oil:

1. A set of numbers seen on the surface of the label should correspond to a set of numbers inside after tearing.

2. Colorless ultraviolet fluorescence. Under the irradiation of ultraviolet light, the hidden red "shell" appeared on the white adhesive layer.

3. Miniature text: The naked eye looks like a line. Under the magnifying glass, you can see that this line is composed of miniature "shells".

Shell * * * has five colors of packaging barrels. In fact, each color packaging bucket represents different uses and grades, and is also used for vehicles of different grades. They are: grey shells, blue shells, yellow shells, red shells and white shells. The gray shell is divided into extraordinary Heineken and HX8, both of which are in synthetic engine oil; The blue shell is semi-synthetic engine oil, and the yellow shell is divided into HX6 and HX5, in which HX6 is semi-synthetic engine oil and HX5 is mineral engine oil; Red shell HX3 and white shell HX2 are mineral engine oils.