Cleans the engine from the inside. Removes deposits from lubrication holes, oil screens, piston ring zone, etc. Reduces engine noise and oil consumption. Improves compression. Increases vehicle's reliability. Cleaning and flushing out the oil systems of petrol and diesel engines. One 500 ml can is sufficient for up to 5 litres of oil. Add Pro-Line Engine Flush to the engine oil at running temperature before changing the oil. After adding the product, allow the engine to idle for approx. 10 to 15 minutes depending on the degree of contamination. Then change the oil and the filter. Pro-Line Engine Flush is compatible with all commercially available engine oils Note: Not suitable for use on motorbikes with wet clutches.