This high-performance fuel additive is formulated to safeguard the valve seats in engines running on unleaded petrol by forming a lubricating and protective film that replicates the cushioning effect of lead, traditionally found in older fuel compositions. This artificial layer prevents direct metal-to-metal contact, reducing friction and thermal stress on engine components and minimising the risk of micro-welding, particularly on soft valve seats commonly found in small and classic engines. Beyond mechanical protection, this product also plays a crucial role in fuel preservation. When petrol is stored for long periods — such as in seasonal equipment, backup generators, or marine engines — oxidation can severely compromise fuel quality. This additive halts oxidation by stabilising the hydrocarbons in the fuel, effectively preventing the formation of gum, varnish, and deposits that clog filters and reduce engine efficiency. Moreover, the formulation ensures that the entire fuel system remains free from corrosion and sediment build-up. Its cleaning action promotes consistent engine starts, even after months of inactivity. Designed for both two-stroke and four-stroke petrol engines, its application spans a wide array of vehicles and equipment including motorbikes, lawn mowers, scooters, and outboard boat engines. Whether used to maintain a daily vehicle or to preserve stored fuel in a seasonal machine, this additive provides reliable, long-lasting protection for both the engine and its fuel.