As fuel is combusted it leaves deposits in the engine. Gradually, they build on fuel injectors, valves and vital sensors and are the reason engines become less and less efficient as time goes by.

But when tin-antimony alloy is placed in the fuel tank of any petrol or diesel vehicle, it causes the fuel to act as a self-cleaner as it combusts. And because it doesn’t dissolve, breakdown or wear away in fuel, it never needs to be replaced or topped up. And goes on working for as long as it's in the fuel tank. Keeping the engine permanently clean and efficient.

Ever unpopular with the motor industry, this simple alloy remains a Godsend for motorists, public health and the environment.