What is Automotive Urea?

[LucyLynn]

Automotive urea is a colorless, transparent liquid stored in a urea tank. When sensors detect nitrogen oxides in the exhaust pipe, it automatically sprays mist-like automotive urea, which mixes with nitrogen oxides and undergoes redox reactions in the SCR reaction tank, ultimately producing non-polluting nitrogen and water for emission. Vehicles have a dedicated urea tank where the urea is filled. As long as the vehicle is running, urea will be consumed, so it needs to be replenished promptly. Generally, about 4 liters of urea are consumed per 100 liters of diesel, depending on factors such as engine displacement, model, and manufacturer.