add Blue for Green

What is AdBlue?

AdBlue is a diesel exhaust fluid used in vehicles with Selective Catalytic Reduction (SCR) technology to reduce harmful gases being released into the atmosphere. AdBlue is a 32,5 % solution of high-purity, synthetically manufactured urea in de-mineralized water. It is a safe-to-use fluid.


AdBlue from BharatNox is suitable for use in all trucks and other diesel vehicles/machines fitted with Selective Catalytic Reduction (SCR) systems to reduce Nitrous Oxides (NOx) a harmful environmental pollutant.

AdBlue is not a fuel additive and is only ever added to a specifically marked tank on the vehicle, if in doubt refer to the operating manual or speak to vehicle provider. Never add to any other tank on the vehicle or mix with any other vehicle fluids including water. Always wash away any drips or spillage from the vehicle immediately following refill.


Why is AdBlue® quality so important?

A new vehicle or machine is an expensive investment so to keep it operating optimally and earning money is of vital importance. Because AdBlue® is dosed into a catalyst system, it is necessary to limit the presence of certain elements and compounds which can block the active sites on the catalyst. Such blockage can reduce the efficiency of the system, ultimately causing the pollutant levels to rise outside of the preset limits in the vehicle ECU, leading to power limitation until the problem is resolved and possibly needing replacement of the catalyst. In addition, blockage of the catalyst can lead to undesirable back pressure in the engine, leading to reduced fuel economy. Elements that can cause problems include those found commonly in tap water such as Calcium and Magnesium which can cause a build up of scale, similar to the type found in a kettle, iron or boiler. This scale cannot be cleaned from the catalyst and is why it is important to never fill tap water into the AdBlue® tank.

Other elements needing limitation include Iron, Aluminium and Copper which block the reactive sites on the catalyst. Whilst not normally found in high quantities in water, these elements can be introduced into the AdBlue® by the use of incompatible storage tanks, pumps or pipework as AdBlue® is mildly alkaline and will dissolve metals such as mild steel, aluminium alloys and brass. These dissolved metals will then be irreversibly deposited in the catalyst