Liqui Moly Motor Oil Saver regenerates engine seals made of rubber and plastic like shaft sealing rings and valve stem seals, preventing oil leaks and reducing oil consumption. It is suitable for all common motor oils in gasoline and diesel engines, including those with diesel particulate filters, and is safe for turbochargers and catalytic converters. One 300 ml can treats up to 5 liters of oil, with sealing effects appearing after 600–800 km; repeat every 30,000 km for lasting results. Not for motorbikes with wet clutches.