Penrite 250ml Ultimate Petrol Fuel Stabiliser Ultimate Fuel Stabiliser is a fuel additive designed to stabilise petrol and diesel fuel when in storage to prevent loss of engine performance due to old and stale fuel. FEATURES Prevents fuel from going stale for up to 12 months Prevents gum, sediments, and polymer formation in the fuel Protects fuel systems against rust and corrosion Application Ultimate Fuel Stabiliser is designed for use with all petrol or diesel fuelled engines. It can be used with passenger cars, commercial vehicles, boats, motorcycles, stationary engines, classic and veteran vehicles and anywhere that fuel is not turned over regularly. Ultimate Fuel Stabiliser is added either directly into the engines fuel tank or into fuel storage containers and it is safe for use with fuels including E10, premium and high-octane unleaded petrol as well as diesel fuels including ULSD and Biodiesel. Ultimate Fuel Stabiliser when used at the correct dosage, can extend the life of petrol fuels by up to 12 months. It is an economical alternative to dumping and replacing leftover fuel in fuel tanks, jerry cans and other storage facilities.