Friction is the enemy of your engine. Friction causes metal wear, heat buildup and higher fuel consumption while robbing your engine of horsepower, torque and overall efficiency. Friction is typically what degrades performance and causes an engine to wear out prematurely. Even with premium quality motor oils, these imperfections "scrape" against each other to increase friction and its harmful effects. Microlon treats the engine metal, not the oil. Microlon significantly reduces harmful effects of friction by coating internal engines parts with a durable micro-thin lubricant coating. You only have to treat your engine once with Microlon engine treatment as it is formulated to last the life of your engine. Only once! Kit includes 16 oz High Performance Engine Treatment, 8 oz Compound 90, and 8 oz Fuel System Treatment.