AdBlue® is a high‑purity, 32.5 % urea solution used in SCR systems on diesel vehicles. Injected into the exhaust gas, it serves as a reducing agent so that released ammonia reacts with nitric oxides on the catalyst to form nitrogen and water. This process significantly reduces nitrogen oxide emissions from diesel engines and helps vehicles comply with stringent European emission standards. AdBlue® meets ISO 22241 quality requirements, guaranteeing uniform purity and performance when stored and handled correctly.
AdBlue® is a registered German trademark of the VDA (German Automotive Industry Association) and is produced by BASF, a leading global chemical company that holds a license to manufacture this solution. Only officially approved manufacturers may market DEF under the AdBlue® name, ensuring consistent quality and adherence to industry standards. Automotive manufacturers and service professionals trust BASF’s AdBlue® for effective emission reduction in SCR‑equipped diesel vehicles.
AdBlue® is used in diesel vehicles with SCR systems to reduce nitrogen oxide (NOx) emissions.
No, AdBlue® is a separate 32.5 % urea solution injected into the exhaust gas, not diesel fuel.
Diesel vehicles equipped with SCR systems to meet Euro IV, V, and VI onwards standards typically use AdBlue®.
It should be stored and handled only in dedicated systems between −11 °C and 25 °C to maintain product quality.
AdBlue® supports reduced fuel consumption and maintains constant engine output without reducing performance when used with SCR technology.
