I regularly add every 5-7000 km or every 4 months, in a ratio of 1:1000, to the car's fuel tank in order to prevent the accumulation of dirt from the fuel. The only reason I chose the 1-liter packaging was to save money compared to the dosing device that comes with the 250ml bottle. However, there is no way to control the quantity you pour from it into the tank, so I have to use dosing devices.

Also, the auxiliary plastic cylinder that opens the inner cap of the fuel tank is not provided, as with other Wurth products.

Due to difficulties in application, I rate it 4/5, only suitable for tanks and burners without the aforementioned accessories

Necessary product for gasoline-powered vehicles. Cleans the fuel injection and supply system thoroughly. The result was immediately noticeable in the vehicle's performance.