American Caldecott Shi lubrication oil winter treasure series all-purpose antifreeze anti rust liquid degrees - 25 - 35 degrees - 40 degrees 9 kg 16 kg engine coolant is suitable for all cast iron and cast aluminum gasoline / diesel engine using; Caldecott Shi ensemble antifreeze antirust fluid is ethylene glycol, can effectively prevent rust and corrosion of water tank; four Seasons General, can effectively improve the work efficiency of the cooling system; users can according to the temperature of the weather, adding a certain proportion of water mixed use & nbsp; & nbsp;