Can National V and National VI urea be used interchangeably?

[DelLeila]

National V and National VI urea can be used interchangeably. Here are the specific details about urea: 1. Urea tank: There is a dedicated urea tank in the vehicle where urea is added. As long as the vehicle is running, urea will be consumed, so it needs to be replenished in time. Generally, about 4 liters of urea is consumed per 100 liters of diesel. 2. Exhaust: The harmful substances in diesel vehicle exhaust are mainly nitrogen oxides and particulates. Technical measures can be employed within 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 in the presence of a catalyst to produce harmless nitrogen and water.