30% "Nullapon"/45 "Antarox" A-400/10 "Metso"/45 First empty the radiator. Then dissolve the ingredients in warm water and use 1/3 ounce too gallon of radiator capacity. Run the engine for a few days. Repeat the treatment if necessary. Formula No. Oxalic Acid/85-20 Sodium Acid Sulfate/0-65 Lignin Sulfate ("Marasperse" N)/10 "Nekal" BX-78/5