What is AdBlue®

AdBlue® is the registered trademark of the Verband der Automobilindustrie (VDA) for high purity aqueous urea solution (32.5%) for use in selective catalytic reduction systems (SCR) to reduce emissions from Diesel Vehicles.

How AdBlue® works?

The AdBlue® is stored in a separate tank on the vehicle and from there is dosed automatically into the exhaust gas, as required to the amount of Nitrous Oxides (NOx) being produced by the engine.

Following the dosing, the exhaust gas and AdBlue® mixture passes through the SCR system where a chemical reaction takes place, converting the harmful NOx to harmless nitrogen and water which is dispersed from the end of the exhaust.

AdBlue® is non-toxic and safe to handle. It is not a fuel or a fuel additive and should only be used in the dedicated tank in your vehicle. It is refilled in a similar way to refuelling diesel.

SCR technology is being adopted by most large scale car manufacturers for new diesel engine vehicles and is becoming more widely available in petrol stations and by oil suppliers.

Why is AdBlue® Quality Important?

All manufacturers of vehicles and machines insist that only urea solutions produced to ISO 22241 standards should be used with the SCR system.

The AdBlue® trademark is owned by the Verband der Automobilindustrie (VDA), who insure that the correct standards and quality are maintained in accordance with ISO 22241 Specification.

Using uncertified urea solutions can expose you and your vehicles to un-necessary risk.  If the quality is not to standard you run the risk of the presence of certain elements and compounds which can block the active sites on the Catalyst. These blockages can reduce the efficiency of the system, ultimately causing pollutants to rise, and potentially damage to the SCR exhaust system and warranty of your vehicle.

By choosing UltraGreen AdBlue® you are guaranteed the highest quality AdBlue® on the market, produced to ISO 22241 Standard and independently tested prior to release.