STA-BIL is the top-selling fuel stabilizer in America, and for good reason. It keeps fuel fresher longer for quick and easy engine starts after an extended period of storage. Sta-Bil removes water in the fuel tank to prevent corrosion and protect the engine from gum, varnish and rust. It also cleans carburetors and fuel injectors, helping to prolong engine life. By adding Sta-Bil to your fuel before storage, you also eliminate the hassle and potentially hazardous task of having to empty the fuel tank. 1 oz. of Sta-Bil treats 2.5 gallons of fuel.STA-BIL Marine Performance Treatment has double the corrosion-fighting power and four times the fuel system cleaners of original STA-BIl for keeping your boat's saltwater-tuned engine running in peak condition. Works in all two- and four-cycle marine engines using gas, gas/oil, or gas/ethanol fuels. Sugggested for every fill-up, not just seasonally. Prevents ethanol build-up and protects vital engine parts. Also safe for RVs, motorcycles, snowmobiles, lawnmowers and all outdoor power equipment.1 oz. treats 10 gallons of fuel. Available:Fuel Stabilizer - 10-oz. bottle, 32-oz. bottle Marine Fuel Stabilizer - 8-oz. bottle, 32-oz. bottle Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Fuel Stabilizer.