Great for use in boats jet skis & every other watercraft this advanced fuel system cleaner is designed to cleanse the entire fuel system including injectors fuel lines and pumps effectively removing water gum and varnish. Its unique formula not only enhances performance and longevity but also prevents corrosion ensuring your fuel system continues to stay healthy. The fuel stabilizer component maintains the freshness of fuels in-season safeguarding your fuel system and engine for immediate use whenever required because gasoline does degrade faster than you think. Additionally the MPG booster optimizes fuel performance contributing to improved gas mileage and enhanced engine power by facilitating efficient combustion and prolonging engine life. For optimal results simply pour 1 oz of the product into the fuel tank for every 10 gallons of fuel before filling up and run the engine for 5 minutes to ensure thorough treatment. For year-round protection combine STA-BIL Marine with STA-BIL Storage providing a comprehensive solution for both in-season operation and long-term storage keeping your equipment in peak condition throughout the year. EXPIRATION DATE: 2 years from the opening of product or 5 years from date of production (5-digit code on the back of the bottle; read as YYDDD). YY indicates the year of production. DDD represents the number of the day of that year of production.