Detergents are a class of lubricant additives that help keep engines or machinery components clean by preventing the formation of deposits. They effectively neutralize acids and clean carbon, varnish, and sludge buildup in the engine. Their primary role is to maintain a clean environment within the engine, which improves the overall performance and longevity of the equipment. Detergents work by interacting with contaminants, allowing them to remain suspended in the oil and preventing them from sticking to metal surfaces. The main advantage of detergents is their ability to prevent the formation of harmful deposits, thereby ensuring optimal engine performance and efficiency. These additives are commonly used in automotive engine oils, industrial oils, and various other machinery that requires a clean-running lubricant to function effectively.