What Is AdBlue and Why Is It So Annoying to Use?

What Is AdBlue

If you’re an owner of a diesel vehicle produced after September 2015, your car most probably has an SCR system, and with it – the dreaded AdBlue.

The SCR system stands for Selective Catalytic Reduction and is an advanced active emissions control technology system that, in simple terms, reduces nitrogen oxide emissions. This sounds great – after all, we’re all for reducing greenhouse gas emissions to fight global warming, right?

Unfortunately, while the SCR system effectively reduces emissions, it often isn’t designed very well – it requires frequent maintenance and inspections to make sure it’s working properly, which is already quite expensive, and on top of that any faults – which are inevitable in the long run – will cost you much more that most regular repairs.

What is AdBlue and what does it do?

AdBlue is a part of the SCR system – a blue liquid that’s added to the exhaust in order to turn NOx into safe diatomic nitrogen and water. When it works, the liquid isn’t very problematic and might even reduce your fuel usage by a bit and slightly extend your engine’s life expectancy. Sounds good, right?

Well, there are also downsides. While AdBlue effectively reduces emissions, it is quite expensive in some countries, and you have to buy it in addition to fuel if you want to drive – your car most likely won’t start or perform well without AdBlue. It also tends to damage engine parts and can freeze in low temperatures – generally, it’s not very convenient to use, which is why many drivers use an AdBlue emulator to circumvent it.

Can AdBlue be removed? Using an AdBlue emulator

Unfortunately, it’s not legal to remove an SCR system or AdBlue itself in cars that already have it by design in most countries in Europe. If you perform AdBlue removal and your car gets inspected, you might be facing a large fine – unless you’re driving exclusively in a region where there’s no such thing as Euro 6 and an SCR system isn’t obligatory.

A much better solution is using an AdBlue emulator, which allows you to switch your SCR system on and off, depending on the country you’re currently in. This allows you to save money and engine parts from damage in countries where it’s not required, while turning it off to drive legally in others.

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