AdBlue belongs to the technologies that are supposed to reduce nitrogen oxide emissions. As emission standards get stricter, they appear more and more frequently in cars equipped with diesel engines. Truck drivers most often topped up this liquid, but with the arrival of the Euro 6 emission standard, car owners within the EU are burdened with this obligation as well.

In short, the Euro 6 emission standard applies mainly to diesel engines. According to this standard, diesel engines should produce half as many emissions as cars that meet the Euro 5 emission standard. Manufacturers have no choice but to advance the technology and try to reduce nitrogen oxide emissions to a minimum.