What is Diesel Exhaust Fluid / AdBlue?
It is a solution of 32.5% urea and 67.5% de-mineralized water, which is colourless and non toxic. Diesel Exhaust Fluid/AdBlue is a key element of SCR systems that reacts with engine exhaust gas in the presence of a catalyst, breaking down NOx into harmless nitrogen and water vapor, which both occur naturally in the atmosphere. The entire system is managed by a Dosing Control Unit (DCU) which uses a sensor to monitor the exhaust gases. The DCU receives this information, and uses it to calculate the precise amount of DEF/AdBlue that needs to be added to the mixture. AdBlue has already been in use for over four years in the haulage industry.
