How can Castrol engine oil distinguish authenticity?

First anti-counterfeiting: bottle cap anti-counterfeiting label At present, Castrol lubricating oil products provide three anti-counterfeiting inquiry labels. You can choose the corresponding label style to check the authenticity: QR code plus serial number label form: inquiry method: mobile phone scans the QR code of the label to identify the authenticity. Enter the official account of Castrol WeChat, and the menu bar is "Jiayou Service". Secondary anti-counterfeiting: laser secondary anti-counterfeiting of bottle caps: laser identification of bottle caps Castrol laser identification can effectively avoid recycling old bottles, real bottles and fake oil; 3 Check the cover, check the seal of the cover, and check whether the seal of the cover is complete and damaged. Third anti-counterfeiting: the anti-counterfeiting label of Castrol extreme protection product series adopts industry-leading anti-counterfeiting technology.