AdBlue is a special synthetic urea solution used to chemically reduce the NOx emissions produced by diesel-powered heavy-duty vehicles. It is a non-toxic and environmentally friendly product. AdBlue is classified in the minimum risk category for the transportation of liquids. It can be used in the models of major truck, tractor, bus, and tractor manufacturers in Europe that comply with EURO 4, EURO 5, and EURO 6 standards and are equipped with the SCR (Selective Catalytic Reduction) system. It should not be mixed with diesel or any other type of fuel. Its usage is done through the SCR (Selective Catalytic Reduction) system.