G17 is a gasoline additive customized by BASF, Germany for FAW-Volkswagen, suitable for all models under FAW-Volkswagen (in addition, BASF sales staff said that Shanghai Volkswagen's gasoline additive is actually G17, but the name is different). The main function of the G17 is to clean all the carbon deposits of fuel through the path, including cylinders, fuel injectors, intake and exhaust valves, oil circuits, etc. The ratio of the G17 to gasoline is about one to one thousand. That is, it is best to buy a 70-liter gas tank for a 70-liter gas tank. Add a bottle of G17 and add fuel to the full box. Then, all the oil boxes are used up (the oil volume lamp can be alarmed) before the next bottle of G17 can be used.