Check the listing for details. Autoprofi Guard Fill – Gasoline 75 ML. Condition: New. Listed at 59.24 USD. Guard Fill – Petrol keeps the intake valves, injectors and combustion chambers free of koksartigen deposits, reduces friction in the engine and protects all metal surfaces from corrosion. The Fill Guard additive package reduces fuel consumption by up to 3% and can reduce polluting emissions by up to 35%. Humidity range and condensation water is removed and the upper cylinder is lubricated and protected. Keeps the engine in top condition for the entire duration. Advantages: – Nozzle reduces dirt – Prevents koksartige build-up – Excellent anti-foaming properties – Excellent protection against corrosion – Increases octane – Protection of the system from water and moisture – Better fuel stability – Compatible with engine and fuel system materials. Guard Fill – Petrol keeps -Ø valves,.