Audi is one of the early adopters of the SCR technology, using the agent « AdBlue® » in order to reduce your NOx emission when driving your diesel car. AdBlue® is a highly purified colourless liquid. It contains demineralized water and urea (32.5%). As of Today, most of Audi’s Q and A Series are equipped with the SCR technology for an average … Continue reading AdBlue for Audi | AdBlue4you