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 …

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.

Jul 6, 2025 · You've surely heard of brake fluid, fuel, and lots of other liquids needed to run a diesel vehicle. But what's AdBlue fluid? And do all diesel vehicles need it?

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 …

Mar 7, 2025 · Discover how AdBlue reduces diesel emissions, how SCR works, and why AdBlue is essential for Euro 6 compliance. Learn refilling tips and best practices.

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) technology in …

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 …