Do China VI diesel vehicles still require urea solution?
1 Answers
China VI vehicles still require urea solution, but the standards are more stringent. The primary function of automotive urea solution is to convert nitrogen oxides in vehicle exhaust into harmless nitrogen and water. Using urea solution can reduce fuel consumption, increase power, and promote energy efficiency and environmental protection, which is why the government has mandated the implementation of China V and China VI policies. Below is relevant information about urea solution: 1. The technical name for automotive urea is Diesel Exhaust Fluid (DEF). It is commonly used in diesel engines as part of the SCR (Selective Catalytic Reduction) technology to reduce nitrogen oxide pollution in diesel vehicle exhaust. Its composition consists of 32.5% high-purity urea and 67.5% deionized water, aimed at reducing nitrogen oxide pollutants emitted by diesel engines. 2. Failure to use DEF, or using DEF of insufficient purity or inferior quality, will result in automatic engine deceleration. Additionally, inferior-quality DEF can contaminate the catalyst in the SCR catalytic reaction tank, leading to severe consequences.