It is generally seen as the best to use unleaded fuel. But the beetle engine is designed on the basis of leaded gasoline, you can not simply different than the lead substitute itself to casting. This lead replacement is designed to lead oxides and lead sulphates which provide an important lubrication, replacement. You just have to refueling at the petrol to add, and you can resume driving. And rest assured, it lets the octane unchanged, so that the power of the engine is maintained. Caution! This use does not lead substitute in combination with an injection engine provided with a catalyst and / or lambda-probe. Protects valve seats and piston rings. Is supplied in bottles of 250 ml which is sufficient for 250 liters of gasoline. Through the convenient dosseersysteem the correct quantity of fuel added.