Bardahl Instead of Lead - Treats 250 Litres SpecificationsPackaged in a 250 ml bottle Bardahl Insteaf of Lead is an anti-wear additive specially formulated for older generation 2 and 4-stroke engines running on leaded fuel. It allows the use of unleaded petrol while lubricating and protecting engine parts such as valves and valve seats. This additive also ensures perfect combustion without leaving any deposit. Please note that this product is not compatible with engines with catalytic converters.How to use: Unscrew the cap then squeeze the bottle to fill the graduated dispenser according to the quantity of petrol to be treated. Pour the product into the tank and top up with petrol. One bottle treats up to 250 litres of petrol.