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. Specifically, DEF is an …

Jan 5, 2025 · If you think DEF and Adblue are the same, you should review this blog to explore AdBlue vs DEF and the differences between them. Learn what AdBlue and DEF fluids are, their benefits, and …

Although AdBlue and DEF are marketed under different names, they are essentially the same product—both are urea-based solutions designed to reduce NOx emissions from diesel engines …

Aug 19, 2024 · A: It’s a marketing term for diesel exhaust fluid. It’s a registered trademark of the German Association of the Automotive Industry, so you’ll see and hear the term more in Europe. In the U.S., …

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 …

Jul 6, 2025 · Whatever you call it, DEF is a fluid used to help clean up diesel exhaust. It's made from urea and deionized water, and when it meets diesel exhaust gases, it causes a chemical reaction. …