AdBlue - What is it and Why is it Important

Published Date: 3rd Nov 2023

Image of Redex AdBlueAs the world becomes more environmentally conscious, the demand for clean diesel cars is increasingly important. One effective solution to address this issue is the use of AdBlue, a liquid additive that will significantly limit the emission of harmful gases from diesel exhaust pipes. AdBlue works by converting nitrogen oxide (NOx) emissions into harmless nitrogen and water through a selective catalytic reduction (SCR) process.

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For many new car buyers, the concept of AdBlue might be entirely new. It is important to understand that AdBlue is not a fuel additive but rather a fluid that is injected into the vehicle's exhaust system. It reacts with the nitrogen oxide in the exhaust gases and breaks it down into harmless substances. This process helps to minimise the environmental impact of diesel vehicles, making them cleaner and more eco-friendly.

AdBlue offers several benefits, including reducing nitrogen oxide emissions by up to 90%, improving fuel efficiency, and extending the lifespan of the vehicle's exhaust system. Furthermore, the use of AdBlue is not limited to cars but also extends to other diesel-powered vehicles such as trucks, buses, and agricultural machinery.

By utilising AdBlue, we can contribute to the preservation of our environment and the reduction of air pollution. It is an effective means to comply with increasingly stringent emission standards and regulations. As we review the topic, we will explore the various aspects of AdBlue, its compatibility with different vehicle models, and provide useful tips for its usage and maintenance.

Join us on this journey to uncover everything you need to know about AdBlue, its role in reducing harmful emissions, and how it shapes the future of cleaner diesel vehicles. Diesel drivers using Adblue can make a positive environmental impact while enjoying the benefits of efficient and sustainable combustion engine transportation.

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What is AdBlue?


Simply put, AdBlue is a liquid solution comprised of urea and purified water. When AdBlue is injected into a diesel car's exhaust system, it converts harmful nitrogen oxides into harmless nitrogen and water vapour. This reaction occurs in a selective catalytic reduction (SCR) converter, which is fitted into the car.


How does AdBlue work?


Image of an Mercedes AMG Exhaust Pipe

AdBlue releases ammonia through an SCR converter when added to the exhaust fumes of a diesel car. The ammonia then reacts with the harmful nitrogen oxides, breaking them into harmless nitrogen and water vapour. The SCR converter removes these harmful gases, meaning the clean exhaust pipe produces fewer toxic emissions.


Why is AdBlue important?


AdBlue is important as it helps diesel cars reduce their harmful emissions, allowing car buyers to feel good about driving a cleaner vehicle. Adding AdBlue to a diesel car can reduce nitrogen oxide emissions by up to 90%. This enables diesel cars to comply with increasingly strict emissions regulations, popular in the UK, Europe and many other countries worldwide.

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How do I add AdBlue to my car?


AdBlue is added manually to diesel cars. Nearly all new models have a refillable AdBlue tank, which is situated next to the diesel fuel tank, often under the same flap. Many new diesel models will notify drivers when AdBlue levels are low. It is best practice to monitor your AdBlue levels and top up when necessary. Without AdBlue, a diesel car will eventually fail the strict emissions tests, not to mention a hefty fine for the driver.

AdBlue is a necessary component for clean diesel cars in modern times. It is a vital solution to reduce harmful diesel emissions, ensuring that drivers can feel better about the impact that they are having on the environment when they drive their diesel cars. By keeping an eye on AdBlue levels and making sure that the SCR converter is working properly, new car buyers can be confident that they are part of a movement towards a cleaner and greener future.


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**Please note UK vehicle specifications, trim levels, options, and engines are subject to change anytime. Therefore, confirming the vehicle specifications you are interested in when you purchase is important. Vehicle manufacturers also reserve the right to change specifications without notice.