PDO93 - 95%, kisan acid 4.0 - 6.0%, sebacic acid 0 - 1.5%, sodium trill triazole 0.3 - 1.1%, antifoamer 0.05 - 0.3%, and dye 0 - 0.02% is included to 2- ethyl, the antifreeze/the coolant for the internal combustion engine. PDO93 - 95 weight %, nitrous acid sodium 0.5 - ...