Urea, also known as AdBlue exhaust gas treatment solution , is a colorless, odorless and safe solution for users. This solution plays an important role in the exhaust gas treatment system of trucks and modern diesel vehicles.
This is an indispensable part of SCR (Selective Catalytic Reduction) technology, considered the “lungs” that help vehicles meet strict emission standards such as Euro 4, Euro 5, and Euro 6. So what is Urea and why is it so important? Let’s find out!
What is Urea?
Urea solution or AdBlue is essentially a pure urea solution dissolved in deionized water (EDI), usually with a concentration of 32.5% urea and 67.5% EDI water. AdBlue is non-toxic, easy to use and safe for the environment. When injected into the SCR system, this solution helps reduce harmful emissions such as NOx, helping the vehicle emit cleaner air.
The role of AdBlue exhaust gas treatment solution in SCR system
The SCR system is an advanced exhaust gas treatment technology, often installed on trucks and heavy vehicles to reduce polluting emissions. When the engine is running, exhaust gas containing NOx will pass through the SCR system. Here, AdBlue solution is injected, a chemical reaction takes place to help convert NOx into nitrogen gas and water vapor – substances that are not harmful to the environment.
Thanks to that, vehicles using Urea solution not only reduce polluting emissions but also comply with increasingly strict emission regulations, helping to protect public health and limit air pollution.
What happens when the car runs out of Urea?
When the Urea level is low or depleted, the vehicle will experience many performance and durability problems.
The fault light is on.
When the AdBlue solution falls below the specified level, a fault indicator light will appear on the dashboard. This light is to warn the driver that the vehicle needs to be topped up with Urea immediately to ensure the SCR system operates effectively.
Reduced vehicle performance and power
Vehicles lacking urea can experience instability during operation, reduced engine performance, and even vehicle speed restrictions. This is especially true for truck drivers on long trips.
Risk of engine damage
If the vehicle is continued to run without adding Urea, the components in the exhaust gas treatment system will be damaged. The SCR system is designed to operate with AdBlue solution, so without this solution, parts such as the catalyst and sensor system can wear out and fail, causing serious problems for the engine.
No traffic allowed
In some countries, operating a vehicle that does not meet emissions standards can be considered a violation of the law and can result in severe penalties. This is particularly true in countries in Europe and North America where emissions regulations are very strict. This highlights the importance of maintaining and replenishing trucks with urea at the right time.
Benefits of using Urea truck water properly
Using Urea solution properly not only helps the vehicle operate stably but also brings many other benefits:
Reduced emissions: Thanks to AdBlue, trucks can significantly reduce NOx – a serious air pollutant.
Emission Compliance: Using aqueous Urea solution is one of the measures to make trucks meet Euro 4, Euro 5, and even Euro 6 standards.
Increased engine life: When the SCR system operates stably, the engine will have fewer problems, helping to prolong its life and reduce repair costs.
When to add Urea to trucks?
AdBlue fluid does not run out as quickly as fuel, but it still needs to be checked regularly. Depending on the load and frequency of use of the vehicle, the driver may need to top up the fluid every few thousand kilometers. It is best to top up as soon as the warning appears to ensure that the exhaust gas treatment system is always operating at its best.
Urea solution plays an important role in reducing pollutant emissions and ensuring that vehicles meet strict emission standards. Adding Urea at the right time not only helps protect the environment but also helps the vehicle operate more stably and durably. To optimize engine life and comply with traffic laws, do not forget to check and maintain a full AdBlue solution for your truck.
=> Learn about: AdBlue exhaust gas treatment solution
