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Frequently asked questions about AdBlue® and SCR

Is AdBlue a diesel additive?
AdBlue never comes into contact with the fuel, it is a common misconception that it is an additive. AdBlue is carried onboard the vehicle in a separate vessel to the fuel storage tank.

What kind of vehicles use Adblue
AdBlue is used by modern diesel engines which are equipped with an SCR (Selective Catalytic Reduction) catalyst.

How Does AdBlue work?
It is injected into the exhaust gases as a post combustion process through an SCR where it breaks harmful NOx (Nitrous Oxide) emissions down into mostly Nitrogen and Oxygen

What is AdBlue made of?
AdBlue is a high purity, 32.5% strength urea solution, mixed with 67.5% demineralised water.

Does it need to meet Quality Standards?
Yes, it needs to meet the ISO 22241 DIN70070 standard

How much AdBlue do I need?
Average consumption of AdBlue is generally 5% of diesel use, so you will need to tank much less for AdBlue then you do for diesel. You will use about 5 liters of AdBlue to every 100 liters of diesel.

How should I store AdBlue?
AdBlue can be stored for 18 months if this is done in a correct manner, ie away from direct sunlight. It needs to be protected from too warm or too cold temperatures. Its freezing point is at -11 degrees Celsius. When it thaws, the product will retain its initial quality. It should be stored in a sealed package and in a well ventilated storage area.

Why should I choose SCR with AdBlue over other technologies?
AdBlue combined with SCR offers you a fuel efficient solution, with lower CO2 emissions than competitive solutions. All major European and North American truck manufacturers currently offer SCR equipped models. The future Euro VI emission standard is set to reinforce the demand for this technology in Europe.

Why does AdBlue quality matter?
Various actions can affect the quality of AdBlue. To prevent contamination, it is imperative that foreign matters do not come into contact with the solution. Using contaminated AdBlue can lead to expensive catalyst replacement costs.

Has this technology been field-tested?
Millions of kilometers have already been driven in order to test the new technology. It has also been tested under extreme weather conditions, in Spain and Finland.

What happens if an engine runs without AdBlue?
Running out of AdBlue will not cause your engine to stop working, but it will result in an increase of NOx emission. Some modern systems will limit engine power to comply to emission standards without AdBlue.

What happens if I swallow AdBlue?
Drink plenty of water and seek medical advice.

What happens if I get AdBlue in my eyes?
Flush gently with running water for 15 minutes. If irritation persists, seek medical attention

What happens if I get AdBlue on my skin or hair?
If skin or hair contact occurs, remove contaminated clothing and flush affected areas with running water. If irritation persists, seek medical attention.

How do I clean up a spill?
Clean it up with water.


Order AdBlue Online

Air1 Adblue IBCIf you're an existing client, you can now order online. It's a quick and easy way to ensure you never run out of AdBlue!


AdBlue Tanks and Containers

    •  AdBlue 10 Litre top-up bottle10 Litre Top-Up Bottles

    •  200 Litre Drums

    •  1000 Litre IBC's

AdBlue Dispensing Systems

    • AdBlue electric pumpNozzles & Fittings

    • Gravity Feed Systems

    • Manual Pumps

    • Electric Pumps

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Air1® is a registered trademark of Yara International ASA. AdBlue® is a registered trademark of the Verband der Automobilindustrie e.V (VDA)
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