Improves quality of gas by adding powerful cleaning agents to help fight accumulation of harmful carbon, gum, and varnish deposits in the fuel system. Also engineered to remove water. Made with jet fuel, safe for all gas engines to boost cleaning performance of gas, save gas, and fight fuel line freeze. May be used in combination with other STP fuel additives. This STP Gas Treatment is one of many top quality items in our Auto Fuel Additives department.