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.

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 …

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 …

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 …

Jan 17, 2025 · The AdBlue system is a vital technology that enables diesel vehicles to meet strict environmental standards without compromising performance. Understanding what AdBlue is, …

Aug 15, 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 …

If you've seen bottles of AdBlue at filling stations and wonder what it's for and whether your car needs it, our guide will tell you everything you need to know.

AdBlue is a clear, non-toxic liquid made up of 32.5% urea and 67.5% deionized water. This simple yet effective fluid is specifically designed to work with Selective Catalytic Reduction (SCR) …

Feb 18, 2025 · AdBlue is a high-purity urea solution designed to reduce harmful emissions from diesel engines. It is not a fuel additive but a separate fluid stored in a dedicated tank within …