Compass oil system cleaner cleans and maintains the entire oil system. It provides greater power and energy, dissolves dirt and resin throughout the entire circuit and removes residues. Neutralizes and cleans harmful engine acids. For all petrol and diesel engines, as well as manual transmissions and differentials. Eliminates rattling noises and increases service life. Contents: 300 ml. Use biocides safely! Always read the label and product information before use.