AdBlue – What is it and how does it work?

If you've bought or are thinking of buying a new diesel car, you'll have noticed that it has an extra tank for AdBlue. What is the purpose of this additive?

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The reason for this additive is simple: to reduce the nitrogen oxide emissions generated in the combustion processes of vehicles. The solution consists of 32.5% pure urea and 65.7% demineralized water and acts directly on the exhaust gases.

The emergence of AdBlue is due to the car industry's attempt to act in accordance with the protocols originating from environmental summits.

The European Council's Euro 6 standards require car manufacturers to develop and implement technologies that reduce the emission of polluting and contaminating gases. This gave birth to AdBlue, which is injected directly into the vehicle's exhaust system and complies with the imposed standards.

The filling nozzle for the AdBlue tank is usually located next to the fuel inlet or in place of the spare tire and can be applied just like diesel, via a hose at a filling station or, if you can't find a station with this option, there are 5, 10 or 20 liter jerry cans.

The estimated consumption is approximately 1.5 to 2.5 liters per 1,000 km, although this varies depending on the system's operating temperature, the car's ambient temperature, etc.

If you're planning a long journey, keep an eye on the amount of this additive in your tank - if it's empty, your car won't start. To reduce your ecological footprint, its use is essential, as well as being very practical.

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Source: galp.com

Translated with DeepL.com