Stanadyne Lubricity Formula - Case of 12 - 16 oz. Bottles | One bottle treats 125 gallons of Diesel fuel. Extra strength lubricity improver for use with very dry or “winter blend” fuels such as jet fuel, kerosene, or #1 diesel. Five times more lubricating content than other Stanadyne additives. Recommended when excessive wear is a problem. Cleans and protects injectors and all fuel systems components. Demulsifies water for filter/separator efficiency. Fights formation of corrosion and rust. Keeps fuel fresher. Specially formulated for ultra low sulfur diesel. Contains no alcohol. Approved by Original Equipment Manufacturers (OEMs).