STP Gas Treatment improves gas quality, alleviates fuel system deposits and helps prevent the freezing of fuel lines. The ingredients help remove deposits from carburetors, ports, fuel injectors and intake valves. This type of gas treatment may also help reduce engine emissions and improve engine performance.
To reap the benefits of this gas treatment option, users should pour a bottle in the fuel tank when they fill up with gas. To treat 21 gallons of gas, it is necessary to use 5.25 ounces, and 12 ounces are necessary to treat 28 gallons. This treatment works for all engines that run on gasoline.