What is the purpose of adding urea to diesel vehicles?
2 Answers
Adding urea is a method for cleaning exhaust in diesel vehicles. All vehicles equipped with diesel engines require urea to clean the exhaust; otherwise, the emissions from diesel vehicles will exceed the standard. Here are the relevant details: 1. Adding urea solution to diesel vehicles can reduce nitrogen oxides in the exhaust, lower emission pollution, and enhance the environmental friendliness of the vehicle. 2. In cars, trucks, buses, and heavy-duty non-road vehicles, urea is primarily used as part of the exhaust treatment system to clean vehicle exhaust, reduce nitrogen oxide emissions in the exhaust, and optimize engine performance and fuel consumption.
I've been driving a diesel pickup for quite some time, and adding urea is absolutely not something to be careless about. Its main function is to reduce exhaust pollution, especially those harmful nitrogen oxides. The vehicle is equipped with an SCR system. When urea is poured in, it decomposes into ammonia to catalyze a chemical reaction, converting NOx into ordinary nitrogen and water vapor, significantly reducing air pollution and the risk of acid rain. If you don't add it on time, the system will trigger a warning light, and the engine power will be limited, making it feel like you're dragging a heavy load—very uncomfortable. Over time, it can also damage the exhaust components. Maintenance is quite simple; generally, you can buy a bottle of AdBlue at the gas station and do it along with refueling. Never wait until it's completely empty to add more, or the nozzle may clog, costing a lot to repair. Overall, it's beneficial for the environment, vehicle lifespan, and driving experience—just make it a habit.
