Need the ultimate marine protection for your engine? Well you are in the right place! STA-BIL 360 Marine is the most preferred marine treatment in the market. This formula is the most concentrated to deal with those harsh marine environments. STA-BIL 360 Marine contains fuel system cleaners to keep the fuel system free of gum, varnish, and carbon deposits. This complete ethanol treatment also protects against corrosion and stabilizes fuel for up to 12 months. STA-BIL 360 Marine has industry leading corrosion control and water removal. In all this product is great to increase power and fuel efficiency while making sure your boat, jet ski, or any other watercraft is always ready to go when you want to use it! Treat rate is 1oz to 10 gallons. It is best practice to add STA-BIL 360 Marine to your gas can or tank with fresh gas while you are filling up. This product is to be used with both ethanol and non- ethanol blended gasoline. The measure chamber bottle allows for quick easy measuring.