What is Adblue and Selective Catalytic Reduction?

People often see AdBlue at the fuel station and assume it to be a premium brand. Some individuals are unaware that AdBlue is now a standard for new diesel vehicles and is utilised to deliver cleaner emissions. As global worries for the environment deepen, the motoring industry is taking more steps to ensure that new cars are producing cleaner emissions. For diesel vehicles, the introduction of Selective Catalytic Reduction and AdBlue has been typical, with numerous makers outfitting their more modern models with systems that use the liquid solution to produce less harmful emissions.

If you have purchased a new Diesel powered vehicle, then you have seen the smaller blue or black cap with the main fuel cap. That blue or black cap is for the AdBlue solution in your diesel vehicle. This item is set to have a significant influence in reducing emissions across the automotive fleet, so you must recognise what it is and what you have to do with it.

What is SCR technology for vehicles?

SCR stands for Selective Catalytic Reduction and is a post-combustion technology treatment for diesel vehicles, which allows them to reduce their harmful emissions of nitrogen oxides. This technology requires the use of a reagent called AdBlue. Almost all of the leading engine manufacturers use this technology to meet the requirements of new legislation on NOx emissions.

The essential parts of the SCR system are the:

• SCR catalyst
• AdBlue Fluid injection unit
• AdBlue tank
• AdBlue injection control unit.

What is AdBlue?

AdBlue is a colourless liquid solution which is a mixture of high-purity urea and deionised water. The answer is an essential component of selective catalytic reduction technology, which is one of the most effective systems for reducing the NOx (nitrogen oxide) levels in the exhaust fumes that are outputted by diesel engines.

How Does AdBlue Work?

When Adblue meets a hot exhaust system through the Selective Catalytic Reduction system, it releases ammonia which is a catalyst to a chemical reaction that converts dangerous Nitrogen Oxides into two harmless products – water vapour and nitrogen. Both water vapour and nitrogen are natural byproducts; thus can be siphoned out of an AdBlue prepared vehicle with no negative impacts. In the Diesel Vehicle, there is a different tank for AdBlue, which is commonly situated close to the main fuel tank. Never add AdBlue to your fuel tank. Take advice from your vehicle maker or vehicle’s handbook before topping up.

Why is Selective Catalytic Reduction significant in Diesel Vehicles?

SCR innovation is one of the most practical and eco-friendly advances accessible to help decrease diesel engine emissions. Its viability permits diesel motors to be tuned and improved toward greater eco-friendliness and reduce toxic exhaust emissions.

Why is Adblue Important for Diesel Powered Vehicles?

In Diesel powered vehicles, AdBlue plays an important role. AdBlue aims to considerably decrease emissions of nitrogen oxide, which are harmful to the environment. AdBlue fluid treatment is injected into the exhaust gases. It can filter out more than 90% of the toxic gas emissions of nitrogen oxide into steam and nitrogen, resulting in less pollution. Adblue fluid helps to meet the stringent emission limits set by Euro 6 Emissions Australia – which are standard for the control of emissions of new vehicles.

How to know if my car has an SCR system or not?

The SCR technology is typically found on Diesel-powered vehicles that have been designed to meet Euro 6 regulations. Euro 6 became mandatory in September 2015 in Australia, so any diesel vehicle built after that must have an SCR system and utilise AdBlue. In case of any doubt, consult with your vehicle’s handbook.