AdBlue is a clear mixture of demineralised water and pure urea (32.5%) and is also referred to as Diesel Exhaust Fluid or AUS 32. It is designed to reduce harmful emissions of nitrogen oxides (NOx) from diesel vehicles to non-hazardous gases, in order to comply with more stringent emission standards.

AdBlue is used in vehicles with a Selective Catalytic Reduction catalyst, or SCR. An SCR catalyst ensures that exhaust gases are treated before they leave the vehicle. A large proportion of the heavy-duty vehicles complying with the Euro 4, Euro 5 and Euro 6 standards are equipped with an SCR system and therefore use AdBlue. This applies to most trucks after 2005; the first passenger cars with diesel engines and SCR were introduced in response to the Euro 6 standard in 2014.

In order to protect your vehicle optimally, it is also important that the correct engine oil is used. Are you curious which engine oil is suitable for your vehicle and which drain intervals are recommended? Then consult our Oil advisor.