Does the National VI Transit require urea addition?

1 Answers
VanLorenzo
07/30/25 8:43am
National VI Transit requires urea addition. Urea is essential: With the improvement of national emission standards, vehicle urea has become a necessary consumable, just like engine oil and lubricants today. Urea standards: In China, qualified urea solution is the standard, generally synthesized from 32.5% ultra-pure urea and pure water to reduce NOX. The urea solution reacts with NOX through a reduction process, producing nitrogen, oxygen, and water, thereby reducing nitrogen oxide emissions. This method is applicable to every diesel engine SCR system meeting Euro IV and Euro V emission standards. Hazards of inferior urea: The power and fuel consumption of diesel vehicles are affected by urea. If a diesel vehicle is not equipped with an exhaust treatment device or uses inferior products, it will cause the vehicle's engine to automatically decelerate and also affect the catalyst in the SCR catalytic reaction tank.
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