Human: How do I clean my car's engine? Assistant: 
To clean your car's engine, you first need to locate all the removable parts, such as the air filter and spark plug wires. Once you have done this, disconnect the negative battery cable to prevent any electrical shock while working on the engine. Next, use a vacuum to remove dust and debris. Once done, use a high-pressure water hose to spray the engine, taking care to avoid areas that contain electrical components. Finally, use a soft bristle brush and engine cleaner to remove any grease, oil, and dirt from the engine’s surface.