This product is great to clean engines and their components. It contains a unique combination of components that dissolves all types of grease, oil and other type of dirt created during the exploitation of the car. Spray on a cold engine.Do not let the product dry on the surface.Wait 1 minute then rinse it off thoroughly using a high pressure washer. Min Requirements: Normal Pressurized Sprayer and High Pressure Water Optimal Requirements: Foam Lance and High Pressure Water Jet High Pressure: High Pressure Water Jet Ranges from 90 bar to 150 bar Low Pressure: Normal Water Hose Pipe Ranges from 3 bar to 15 bar