What is AdBlue?
AdBlue is a clear, odorless liquid used in diesel engines to reduce harmful emissions. It is not a fuel additive, but a separate liquid that is added to the exhaust system from its own tank. AdBlue ensures that nitrogen oxides (NOx) are converted into nitrogen and water vapor, allowing diesel vehicles to run more cleanly and meet European environmental standards.
What is AdBlue used for?
AdBlue is used in combination with an SCR (Selective Catalytic Reduction) system. As soon as the diesel engine is running, the system injects AdBlue into the exhaust gases. This breaks down nitrogen oxides before they are released into the air. This is mandatory for almost all modern diesel trucks and buses to meet Euro 6 emissions standards.
What is AdBlue made of?
AdBlue consists of 32.5% urea and 67.5% demineralized water. The liquid is strictly regulated and must meet the ISO 22241 standard. Only then will the system in the truck engine work properly. Please note: AdBlue is not toxic, but improper use can damage parts of the SCR system.
Do you need to top up AdBlue?
Yes, AdBlue needs to be topped up regularly. A truck uses an average of 3 to 5 percent AdBlue compared with its diesel consumption. Once the tank is empty, the engine often automatically reduces its power or will no longer start. That's why it's important to keep an eye on the level and top it up in time through the separate filler opening.
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