Do China V Vehicles Need to Add Urea?

[StephanieRose]

China V vehicles need to add urea. Most China V vehicles use the SCR (Selective Catalytic Reduction) technology for engine exhaust after-treatment. The characteristic of this technology is that it must use automotive urea solution to reduce NOx in engine exhaust. Therefore, China V vehicles must not run out of automotive urea solution in the urea tank while driving. Origin of Automotive Urea: Automotive urea solution was first used in Europe, where it is called AdBlue. In North America, it is referred to as DEF (Diesel Exhaust Fluid). In China, it is called automotive urea solution or "automotive denitration agent." However, it is now generally referred to as "automotive urea" in China. Function of Automotive Urea: Automotive urea solution is key to reducing pollutant emissions from diesel vehicles. It is a urea-based chemical reactant, composed of high-purity urea and deionized water, forming a solution with a concentration of 32.5%. The application of automotive urea solution in SCR systems is crucial for engine exhaust emissions to meet China IV and higher emission standards.