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What is the function of truck urea solution?

3 Answers
SiennaAnn
07/29/25 1:29pm
Urea solution for vehicles is used to reduce harmful nitrogen oxides in exhaust gases into nitrogen and water. Here is some relevant information about vehicle urea: 1. Principle: Technical means can be employed inside the engine to reduce particulate emissions, leaving mainly nitrogen oxides in the exhaust. By injecting urea into the exhaust after-treatment device, the urea decomposes into ammonia at high temperatures, which reacts with nitrogen oxides under the action of a catalyst to produce harmless nitrogen and water. This device is called the SCR (Selective Catalytic Reduction) after-treatment system. 2. Impact of not using vehicle urea: It causes environmental pollution; the chemicals in the diesel vehicle system will quickly oxidize, the urea nozzle will become clogged, and the entire system may be rendered useless; due to the OBD's torque limitation function, vehicles without urea will experience reduced power performance.
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IsabelleDella
08/14/25 4:06am
As someone who has long been concerned about environmental protection, the key role of diesel exhaust fluid (DEF) lies in reducing pollution emissions from diesel vehicles. Through the selective catalytic reduction (SCR) system, it converts harmful nitrogen oxides in the exhaust into harmless nitrogen and water vapor, thereby significantly reducing air pollution. This technology is widely used in large trucks or buses to meet national emission standards and avoid environmental issues like smog. Without DEF, not only will the vehicle trigger fault codes and enter a speed-limiting mode, but emissions will also exceed standards, potentially resulting in fines. I recommend that vehicle owners regularly check DEF levels and use genuine products to protect the engine, extend its lifespan, and be more eco-friendly. In the entire environmental protection chain, DEF plays a crucial role, deserving our attention and promotion to purify our urban air.
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Roman
10/10/25 3:22am
In the experience of driving heavy-duty trucks, urea solution is an indispensable part of daily operations. It is primarily used to treat exhaust emissions, ensuring the engine runs efficiently while complying with regulatory requirements. If urea is not replenished in time, the vehicle may experience power limitations or even stall, affecting delivery schedules and income. I make it a habit to check the urea tank every few thousand kilometers and top it up with commonly available AdBlue products, which helps prevent system blockages. Even better, it can indirectly optimize fuel efficiency, reducing additional fuel expenses. Additional maintenance tip: Avoid leaving the urea tank empty for extended periods, take precautions against freezing during rain or snow, and using high-quality fluid can save money and hassle in the long run. In short, as a practical driver, developing a habit of regular checks is essential.
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