It should be Volkswagen engine oil.

The introduction is as follows:

As the world's largest independent lubricant manufacturer, Flowserve Group has become a leader in the lubricants industry. Focus on product development, technology and applications has made the Volkswagen Group one of the most successful and recognized producers of vehicle lubricants in the world. As an original vehicle oil supplier and long-term partner, Volkswagen is a leader in high-performance engine oil, gear oil and shock-absorbing gasoline. Volkswagen China not only provides services for Volkswagen (Shanghai Volkswagen, FAW-Volkswagen), Shanghai General Motors, Asia Star Benz, Northern Benz, Beijing Benz, Anhui Case Bauer, Southeast Motor, Jiangxi Jiangling, Nanjing Iveco, Jiangsu Yueda Kia, Chery Automobile, Geely Automobile, FAW Xichai, Dongfeng Chaochai and other automobile manufacturers provide oil for vehicle initial installation and after-sales service, and are the main oil suppliers for automobile parts manufacturers such as ZF, Cummins, Sachs, Huizhong Group and Wanxiang Group. business.