5in1 E10 Clean Up has been specially developed to protect the fuel system against the harmful effects of E10 fuels, which consist of 10% bio-ethanol. E10 petrol can cause problems in many cars. Newer cars normally have no problems with E10 petrol, but it is advisable to check whether your car is suitable for E10 petrol. Various problems can occur, such as moisture in the petrol, allowing bacteria to thrive. These bacteria can cause blockages. Furthermore, the rubber hoses, seals, and gaskets in older cars are unsuitable for E10 petrol. Damage to these parts can cause leaks. 5in1 E10 Clean-Up ensures that fuel containing 10% ethanol can be refueled without problems. Properties - Prevents ethanol in the fuel from damaging certain rubbers, seals, O-rings, and gaskets. - Keeps the fuel system clean - Improves fuel quality - Protects against corrosion - Reduces fuel consumption - Reduces fuel consumption - More consistent idling - Neutralizes ethanol in gasoline - Restores power - Prevents valve seat backflow - Eliminates knocking, difficult idling, and engine juddering. Prevents spark plug fouling. Instructions for use: Pour the entire contents of the bottle into an empty tank and then fill up with fuel. For best results, add before every refueling or repeat monthly. This product will not cause damage if overdosed. Use this product every 4 to 6 refuelings. A 310 ml bottle is sufficient for 40 to 60 liters of fuel.