Skip to content

Storage and handling · 5 min

ADBLUE What is it and what is it for?

This invention saved diesel engines from being banned, for decades they were the mainstay of transport and industry. But, increasingly stringent regulations, especially in terms of nitrogen oxide emissions, threatened to severely limit their future, but AdBlue appeared and changed everything. Today you will learn what it is, what it is used for and what happens if it is not changed. If you drive a modern diesel car, you've likely seen the AdBlue tank next to your fuel filler.1 But how does AdBlue actually work? It’s not a fuel additive; it’s a crucial fluid used in a process called Selective Catalytic Reduction (SCR) to turn harmful gases into clean air.2In this video, we break down the chemistry and the mechanics:The Chemical Reaction: How AdBlue (3$urea + water$) breaks down Nitrogen Oxides (4$NO_x$) into harmless Nitrogen and Water vapor.5The SCR System: A step-by-step look at the injector, the catalyst, and the sensors.Running Out: Why your car might refuse to start if the AdBlue tank is empty.Maintenance Tips: How to avoid crystallization and why you should never put AdBlue directly into your diesel tank.

In this video

  • How does AdBlue work, What is AdBlue made of, Selective Catalytic Reduction explained, AdBlue vs Diesel, Diesel Exhaust Fluid guide, AdBlue crystallization problems, what happens if AdBlue runs out
  • SCR system components
  • AdBlue chemical reaction
  • how to refill AdBlue
  • diesel emissions technology
  • AdBlue countdown reset
A Chemical Liquids AUS 32 jerrycan beside a truck at a fuel station

Tell us about your fleet

Share your fleet size, consumption and delivery locations. We will propose a practical next step.