what does adblue do

AdBlue is a diesel exhaust fluid used in vehicles with Selective Catalytic Reduction (SCR) technology to reduce harmful gases being released into the atmosphere. It is a solution of high-purity, synthetically manufactured urea in de-mineralized water. AdBlue is a non-toxic, non-flammable, odourless and biodegradable solution designed to help diesel vehicles meet the latest Euro 6 exhaust emission regulations. When a diesel car with SCR technology burns fuel, it produces nitrogen oxides (NOx), which are harmful to the environment. AdBlue is injected into a modified section of the vehicle’s exhaust, where it creates a chemical reaction, removing the harmful nitrogen-oxide emissions (NOx) and converting them into harmless water and nitrogen. If a SCR-equipped vehicle runs out of AdBlue, it will fail to start, and a warning message will appear on the dashboard.