Liquid solution compatible with Euro IV, V, VI diesel engines. It contains 32.5% urea and deionized water.It is a product required for most trucks, buses and coaches moving in Europe. In recent years, light vehicles that require AdBlue (Mercedes, Audi, Mazda, VW, etc ...) have been marketed. AdBlue is a key product for all vehicles using SCR (Selective Catalytic Reduction) technology, a technology that reduces the level of toxic emissions and especially NOx. The product is neither fuel nor additive, it does not mix with diesel but it is injected into the exhaust system to produce a chemical reaction. It is a non-toxic liquid, clear, safe to handle and environmentally friendly. AdBlue is produced based on strict industrial processes, complying with DIN 70070 and ISO SCR or Selective Catalytic Reduction standards, a technology that helps to substantially reduce NOx (nitrogen oxides) emissions from exhaust gases and is used for Euro 4 and EURO 5 standards.