All About AdBlue #OilChat 64

If you own a new diesel vehicle, you are likely to have to keep it topped up with a special liquid that eliminates harmful gasses being released into the atmosphere…


AdBlue is a diesel exhaust fluid used in vehicles with Selective Catalytic Reduction (SCR) technology to reduce Nitrogen Oxides (NOx) in the exhaust gases of diesel engines. Nitrogen Oxides are a family of poisonous, highly reactive gases that is formed when fuel is burned at high temperatures.

NOx emissions form smog and acid rain and is central to the formation of fine particles (particulate matter or PM) and ground level ozone, both of which are associated with adverse health effects. NOx mainly impacts on respiratory conditions causing inflammation of the airways. Long term exposure can decrease lung function, increase the risk of respiratory conditions and escalates the response to allergens.

AdBlue is stored in a separate tank from the vehicle’s diesel fuel. When the  engine is running, tiny amounts of AdBlue are squirted into the exhaust gas to convert the NOx into harmless nitrogen and water.

Many diesel cars registered after September 2015 use AdBlue to reduce emissions. If you drive an emission-compliant diesel Audi, BMW, Citroën, Jaguar, Land Rover, M-B, Peugeot or VW, it is likely to use AdBlue technology. There is often a clue in the car’s model name, which may have ‘Blue’ or ‘SCR’ in it. Owners of light and heavy commercial vehicle equipped with SCR technology and meeting the Euro IV, V or Euro VI standards will also need AdBlue.

Most AdBlue tank fillers points are situated next to the diesel filler neck, and they usually have a blue cap. Other common places for fillers include the boot and spare wheel well. If you are not sure, the owner’s handbook should tell you the location.

Good news is that AdBlue is now available at competitive prices from your trusted oil supplier. The AdBlue supplied by Blue Chip Lubricants is a bright and clear, non-toxic mixture of the purest urea available and de-ionised water. For more details please phone 011 462 1829, email us at  or visit