Diesel exhaust fluid (DEF; also known as AUS 32 and sometimes marketed as AdBlue[3]) is a liquid used to reduce the amount of air pollution created by a diesel engine.

Nov 7, 2025 · AdBlue is the brand name of a diesel exhaust fluid that’s owned by the German Association of Automotive Industry. It’s not a fuel additive but is meant to be used with newer diesel …

AdBlue is a liquid that’s added to diesel vehicles exhaust to help reduce harmful exhaust emissions (NOx). It turns harmful pollutants into harmless gases that do less damage to the environment.

AdBlue® is an aqueous solution designed exclusively for diesel vehicles fitted with a selective catalytic reduction (SCR) system. This technology has enabled diesel vehicle manufacturers to comply with …

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Nov 26, 2025 · AdBlue is a diesel exhaust fluid (DEF) that helps reduce a diesel vehicle’s NOx exhaust emissions. It’s stored in a tank with a blue filler cap, which is separate from the fuel tank.

May 20, 2025 · AdBlue®, a diesel exhaust fluid (DEF), plays a vital role in helping diesel vehicles meet stringent emission standards. This guide delves into what AdBlue® is, how it works, and why it’s …

AdBlue is a brand name for a specific type of diesel exhaust fluid (DEF) used in SCR systems to reduce nitrogen oxide (NOx) emissions from diesel engines. It is a non-toxic, colorless, and biodegradable …

Jan 22, 2022 · What is AdBlue and how does it work? AdBlue is what we call a Diesel Exhaust Fluid (DEF). It is made from distilled water and high grade aqueous automotive urea. It is a fairly harmless …

The shortage of AdBlue® was driven by shipping disruptions and urea shortages caused by higher demand in agricultural sectors. This led to delays in urea imports and a reduction in the availability of …