Our Engine Flush cleanses important engine parts & harmful deposits which prevent oil flow. It cleans the crankcase cylinder walls, pistons, piston rings for maximum efficiency, protection and performance. Recommended for use before each oil change for improved oil performance. Use 1 bottle of 200ml to 1 - 2 liters of engine oil. Pour the engine flush by warming up the engine keeping it running idle for 10 - 15 minutes before flushing out together with the engine oil.