AdBlue is a well purified colorless liquid. It contains urea (32.5%) & 67.5% of deionized water. AdBlue is used with diesel engines thus also known as diesel exhausts fluid (DEF). Its main active component is ammonia (main raw material of adblue) which is chemically formed by hydrolyzing automotive urea. AdBlue is mainly used as a consumable fluid in diesel & gasoline fuel-based vehicles. It is used with diesel engines using Selective Catalytic Reduction (SCR) ... Read more