Why Do Motor Vehicles Need to Add Urea?

[StJames]

Automobiles require urea solution for the following reasons: Only diesel engines need to add urea solution because diesel engines emit polluting nitrogen oxide gases during operation. These gases are harmful to the atmosphere and human health. Prolonged exposure to such gases can cause respiratory diseases. Therefore, to reduce the damage caused by these gases to the atmosphere and humans, urea solution is required. This involves a catalytic reaction: when urea encounters the emitted nitrogen oxide gases, a chemical reaction occurs, converting the nitrogen oxides into nitrogen and water, which are harmless to the atmosphere and human health.