Features: 1. Anti rust, restrain the scale formed, prevent the radiator overheating, reduce the cooling fluid vaporization and provide lubrication 2All-around and long-term protection to the radiator and can be mixed with all kinds of cooling fluid and antifreeze 3Widely use in the cooling system, environmental friendly Direction: Washing tank firstly, then add coolant until full. And coolant can be mixed with water at rate of 1:1(coolant: water). Add without diluting would be better.