Star Tron Enzyme Formula Ring Clean+ is your go-to solution for maintaining engine efficiency and power across various vehicle types. This robust formula features a cutting-edge enzyme package designed to aggressively dissolve and prevent the toughest of engine deposits. It's engineered to restore your engine's performance, tackling problems like engine knock, stuck piston rings, and dirty spark plugs head-on. By improving fuel combustibility, Ring Clean+ not only clears out deposits caused by ethanol-blended fuel but also boosts overall fuel economy and engine cleanliness. Recommended for routine use every 4 to 5 tanks or as needed, this cleaner works wonders in all gas engines, ensuring optimal conditions for your boat, motorcycle, car, truck, or outdoor power equipment. With Star Tron's legacy of innovation and a firm commitment to quality, each batch of Ring Clean+ is made in the USA, delivering confidence with every use. Add it to your engine care routine to keep your vehicle running smoothly and efficiently on every journey. INSTRUCTIONS: Use 1 fl. oz. of Ring Clean+ for every 10 gallons of fuel. The recommended treatment rate is every 4 to 5 tanks or as often as needed. Using original Star Tron Enzyme Fuel Treatment at every fuel fill is also recommended to keep engine operating at peak performance levels. Safe for use in all gas engines.