Under the combined effect of Adble and SCR technology, it can optimize engine performance and fuel consumption, reduce diesel consumption, which can be as high as 5%-7%, significantly reduce costs, the average consumption of urea is 3%-5%of diesel consumption. Adblue is added to the tank to reduce emissions of NOx from diesel vehicle exhaust and meet the requirements of the country's 4 emission standard truck without Adblue, the emissions of nitrogen oxides is 4 times higher, while added Adblue vehicles more powerful.