1. The most basic function of the urea solution is to convert the nitrogen oxides in automobile exhaust into harmless nitrogen and water, save energy and environmental protection, and make the vehicle meet the emission standard stipulated by the State.
2, through the SCR system intelligent control, mixing car when the storage tank in the urea solution is insufficient, the car will not start up, in order to ensure the normal driving of vehicles, should be equipped with adequate urea solution. The use of different quality of urea solution, the maintenance of vehicles is also different. When the choice of urea solution is not pure enough, particulate matter, heavy metal ions and other impurities exist, the vehicle SCR system of the nozzle, filters and other components caused serious damage, resulting in unnecessary economic losses. Low-quality urea solution if the chemical composition is not high, the presence of heavy metals and other chemical components, will react with the catalyst to reduce the effect of tail gas conversion, mixing car even lose effect. Therefore, in the selection of urea solution should be as far as possible to choose high-quality products to control the vehicle maintenance costs.