Fuel additive for petrol engines that must use leaded petrol. The special phosphate composition ensures better valve lubrication than conventional sulphur-leaded fuel additives and petrol. Suitable for use on mopeds. motorcycles. cars. trucks. lawnmowers. boats, etc. Not suitable for use in engines equipped with a catalytic converter. Usage 250 ml of additive is sufficient to treat 250 l of fuel.