1. Place the engine oil vertically. You will see a label with the words "Shell Lubricant" on the oil bottle cap. It is printed with discolored ink. The color of the words changes with the viewing angle.

2. Dear friends, please pay attention! The "genuine" label on the label disappears when wet and reappears after the water dries.

3. Carefully peel off the anti-counterfeiting surface layer from the red arrow on the label. Laser holographic film: This anti-counterfeiting method is relatively common. Many manufacturers use this type of laser holography. After the label is peeled off, you can Viewed from different angles, the rainbow-colored Shell logo flashes behind the label.

4. Arranged in two rows are the 16-digit Shell anti-counterfeiting code. The number of the logistics code under the anti-counterfeiting code should be exactly the same as the number under the unique barcode on the outside of the anti-counterfeiting label.

5. Unique barcode: The official name is "variable barcode". In fact, each Shell anti-counterfeiting label has a unique and non-repeating barcode, which means that there will be no duplication under any circumstances, even in the same box.

6. Microtext: It looks like lines to the naked eye. Under a magnifying glass, you can see that the lines are composed of the words "SHELL" in miniature.

7. Dial the Shell anti-counterfeiting system hotline 400-888-0500 or log in to the website www.yesno.com.cn, or send a text message to 10669588210885 and enter the number according to the prompts (please note that it is an anti-counterfeiting number. Instead of logistics or management code), you can immediately verify the authenticity of the product. Enter the 16-digit anti-counterfeiting code according to the prompt language to know the authenticity of the Shell lubricant. For all Shell's newly packaged products, if you uncover the anti-counterfeiting label, you can see that the anti-counterfeiting code is 16 digits and can only be checked once.

8. The second layer of labels will appear with the word "SHELL" in red when exposed to ultraviolet light. 3. Currently, there is a telephone anti-counterfeiting inquiry for Shell Lubricants 4L, but there is no anti-counterfeiting inquiry for all 1L engine oil products. ?