BlueCat Adblue NOx reductant fluid

Got a truck or bus registered after 2006?

AdBlue is a high purity non-toxic solution of Urea in demineralised water used in the exhaust systems of Euro4 or Euro5 trucks to reduce harmful emissions. AdBlue is a trade mark owned by the VDA, most truck manufacturers use the SCR system which requires AdBlue. To protect the SCR system the vehicle manufacturers have issued a specification standard ISO 22241 for the quality of AdBlue.

Opie Oils have this on the shelf and ready to go – with prices starting from as little as £9.95



Also included with the 2 litre bottle is a handy filler cap that can be re-used, and the 10 litre can comes with a detachable filler hose.


  • Mercedes OEM Number 000 583 01 07
  • VW/Audi OEM Number G052 910 A2
  • BMW OEM Number 83 19 0 441 139
  • Mazda OEM Number 0000-AD-0002

AdBlue is stored in a separate tank on the vehicle. It is precisely metered into the hot exhaust manifold where the urea solution breaks-down into Ammonia and reacts with exhaust gasses in the presence of a catalytic converter.  The oxides of nitrogen formed at combustion are converted into harmless elementary nitrogen and water. This method is called Selective Catalytic Reduction (SCR).  It is a common misconception that AdBlue is a fuel additive.

Need a bit more info? Have a look below at the diagram explaining how all this works:



Until next time





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