What is AdBlue ®?

AdBlue ® is the registered trademark of the Verband der Automobilindustrie e.V.for the product AUS32, an Automotive Urea Solution 32.5% in de-mineralised water and a cost effective solution to reduce emissions. It is safe, non-hazardous, non-harmful, and non-flammable. It is used in diesel engines that utilise SCR technology to convert harmful emission into harmless nitrogen and steam water and can reduce diesel fuel consumption of SCR equipped vehicles by up to 5%.

The result of using this technology  are cleaner emissions from diesel vehicles and less smog and acid rain related environmental issues. All major European and North American truck manufacturers currently offer SCR equipped models

Why do I need AdBlue ®?

Euro 6 is a recent legislation that requires all newly registered commercial diesel vehicles to significantly reduce exhaust emissions. The predominant technology is to treat exhaust gases after combustion using Selective Catalytic Reduction Technology (SCR), which requires the use of AdBlue ® as a reagent. If vehicles with diesel engines are equipped with SCR technology and operate within the EU, AdBlue ® is a legal requirement. the legislation is being introduced to market sectors other than trucks and buses (Agricultural Tractors, Off Road equipment, passenger cars, etc).

What are the main components of SCR Technology?

The main components are the SCR catalyst, the AdBlue ® injection unit, the AdBlue ® tank and the AdBlue ® dosing control system. AdBlue ® is injected into the exhaust pipe, in front of the SCR catalyst, downstream of the engine. Heated it decomposes into ammonia and CO2.   When the NOx reacts inside the catalyst with the ammonia, is when the harmful NOx particules are converted to harmless nitrogen and steam.

How much AdBlue ® should I use?

Typical consumption is 5-6% of diesel used. This may vary however depending on vehicle type, manufacturer, weight and engine size amid other several factors. Please follow the recommendations given by the manufacturer of the vehicle.

Is AdBlue® a fuel additive?

No, there is a separate AdBlue ® tank that is usually located next to the diesel engine. AdBlue ® is not a fuel, nor a fuel additive. It needs to be used in a dedicated tank which is replenished in a similar way to refuelling diesel.

Does AdBlue ® freeze?

Yes, it freezes at -11 degrees. However, when it thaws, the product will retain its initial quality.

If my diesel vehicle runs out of AdBlue ®, will it damage the engine?

No, it will not damage it, however the vehicle will be operated illegally within the EU as it will no longer comply with Euro 6 legislation. Some newer engines may limit power until AdBlue ® tank has been filled.

Is there any special storage requirements?

AdBlue ® must be stored in dedicated tanker and as it very sensitive to contamination. Containers should be sealed and kept in a dry and ventilated area at constant temperature of no higher than 25 degrees Celsius. To prevent contamination, it is important that foreign matters do not come into contact with AdBlue ®.

How long can I store AdBlue ® for?

Provided AdBlue® is stored at room temperature and away from direct sunlight, shelf life can reach up to 18 months.

Does it matter if I use AdBlue® not approved by the VDA?

Yes, SCR technology relies on AdBlue® being manufactured according to ISO22241 and ensured by Verband der Automobilindustrie e.V. (VDA) approved license holders. By using non approved AdBlue®, users run the risk of damaging the catalyst and may face expensive catalyst replacement costs not covered by manufacturers’ warranties.

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