AdBlue

AdBlue is a liquid solution made primarily of urea and water, used in diesel engines as a means of reducing emissions of nitrogen oxide (NOx) which is a harmful air pollutant. AdBlue is injected into the exhaust stream, where it reacts with the NOx to convert it into harmless nitrogen and water vapor. AdBlue is most commonly used in vehicles that are equipped with selective catalytic reduction (SCR) systems. SCR is a technology that uses a catalytic converter to reduce the amount of NOx in exhaust gases. AdBlue is stored in a separate tank on the vehicle and is refilled at the same time as diesel fuel. The use of AdBlue is mandatory for most diesel vehicles which are manufactured after 2013 in Europe, and many other countries, as a way to meet Euro 6 emission standards. AdBlue is injected into the exhaust stream, where it reacts with the NOx to convert it into harmless nitrogen and water vapor. It is most commonly used in vehicles that are equipped with selective catalytic reduction (SCR) systems and is mandatory for most diesel vehicles which are manufactured after 2013 in Europe to meet Euro 6 emission standards.