What Does Automotive Urea Mean?

1 Answers
KalebFitz
09/07/25 7:32am
Automotive urea is diesel exhaust fluid. Below are the specific details about automotive urea: Principle: The main harmful substances in exhaust gases are nitrogen oxides and particulate matter. Particulate emissions can be reduced through technical means inside the engine, leaving mainly nitrogen oxides in the exhaust. Urea is injected into the exhaust after-treatment device, where it decomposes into ammonia at high temperatures. Under the action of a catalyst, the ammonia reacts with nitrogen oxides to produce harmless nitrogen and water. This device is called the SCR after-treatment system. Urea Consumption: Vehicles have a dedicated urea tank, and urea is consumed as long as the vehicle is running. Generally, about 4 liters of urea are consumed per 100 liters of diesel. Different road conditions and loads can affect the urea consumption rate.
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