Why is urea added to the car?
2 Answers
The reason for adding urea to the car is: to meet emission standards, adding urea can reduce carbon oxides in the exhaust and lower pollutant emissions. The effects of not adding urea to the car are: 1. Exceeding emission standards, causing environmental pollution; 2. The chemicals in the car's system will oxidize, the urea nozzle will become blocked, rendering the entire system useless; 3. The vehicle's power performance will decline. The role of urea is: to treat exhaust gases, reduce pollutants in the exhaust, and optimize engine performance and fuel consumption. The reasons for the urea warning light are: 1. Urea pressure is too low, urea consumption is high; 2. Insufficient power, urea consumption is too high or too low; 3. Instrument panel malfunction.
I know quite a few car enthusiasts, and we often talk about diesel vehicles needing urea when chatting about cars. Actually, this is mainly because some diesel engines require AdBlue solution, which is installed in the vehicle specifically to treat exhaust emissions. Burning fuel in the engine produces harmful substances like nitrogen oxides, which can pollute the air if directly emitted. The added urea participates in a chemical reaction in the exhaust pipe, converting these pollutants into nitrogen and water vapor—simply put, it's good for the environment. Many new vehicles are equipped with this SCR system; without adding it, emissions exceed standards, and the dashboard will show a warning light or even limit engine power. While driving, it's important to regularly check the fluid level in the reservoir; you might need to top it up every 10,000 to 20,000 kilometers—it's a pretty simple operation. AdBlue isn't expensive and can be bought at gas stations. As a car owner, making it a habit to add it can effectively reduce smog.
