Applicable to comply with the Euro Ⅳ, Ⅴ standard Volvo FL, FE, FM, FMX, FH, FH16 Series, Renault Premium, Magnum, Kerax series, Scania G, R, P series, Man (MAN) TGX, TGS , TGA, TGM series of passenger cars, trucks car urea solution (AdBlue) is used without any other additives and water together high-purity urea solution prepared, the solution of urea content of 32.5% (mass fraction). Most domestic and foreign manufacturers of heavy-duty diesel engines using SCR (Selective Catalytic Reduction) technology to meet Euro IV, Euro Ⅴ vehicle emission standards. Select the SCR technology vehicles must add urea solution as catalytic reducing agent, the vehicle emissions standards. Diesel engine exhaust treatment liquid (commonly known as: automotive urea, urea vehicle, automotive environmental urea), in China and Europe, called AdBlue, in the Americas called DEF, in Brazil called ARLA32 AdBlue is a composition of 32.5% is high. High-purity urea and 67.5% pure deionized water was transparent liquid with a faint ammonia odor. If spilled, water evaporation and crystallization. AdBlue is used with SCR (Selective Catalytic car exhaust after reduction treatment) car systems, trucks, buses and heavy-duty off-road vehicles using diesel engines, is SCR technology must be used to consumables, together with the SCR catalyst will diesel engine emissions of harmful oxides of nitrogen converted into harmless water vapor and nitrogen. The main components of the SCR system includes a catalyst, AdBlue injection device, AdBlue AdBlue dose containers, and a controller. Almost all of Europe, the U.S. and Asia, including China's heavy-duty vehicle manufacturers for vehicles equipped with selective catalytic reduction system and with AdBlue fluid, in order to meet the new emission standards for nitrogen oxides (such as Euro IV, Euro V) AdBlue and Under the combined effect of SCR technology, to optimize engine performance and fuel consumption of diesel consumption can be reduced up to 6%, a significant cost reduction. The average consumption of AdBlue is 5% of diesel consumption in general, about highway driving consumes 1.5 liters per 100 kilometers. AdBlue only engine combination can be used to configure the SCR system, because it is neither fuel nor fuel additives. AdBlue perform in line with ISO22241, DIN70070 standard within CEFIC regulations and to ensure the effective operation of the SCR system. AdBlue is not harmful to the environment and are classified as low-risk transportable liquid. Background vehicle development and use of its high diesel urea solution having a higher compression ratio than gasoline fuel efficiency, because it has good fuel economy, power, durability is widely used passenger car. Diesel vehicles HC, CO, CO2 emissions than gasoline vehicles is low, and can be used as bio-diesel and other best use of new energy platform, so the prospects are very good diesel applications. But diesel vehicles emit NOx (nitrogen oxides) and PM (particulate matter) is much higher than gasoline vehicles, and can not, as a three-way catalyst to achieve the country like a gasoline car Ⅳ emission, restricting the development of diesel engines. NOx can form acid rain, photochemical smog and toxic corrosive effects of sulfur oxides and nitrogen oxides is the main cause of acid rain substances, the current situation is fairly grim prevention of acid rain, and nitrogen oxides are the focus of this phase of the prevention and control .