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 …

Apr 17, 2023 · Start a conversation about Diesel Exhaust Fluid (DEF) with a group of diesel truck owners and you’ll likely hear more grumbling than cheers. It was in 2008 that the government …

This article explains how DEF (Diesel Exhaust Fluid) works in conjunction with the SCR in diesel engines and how the EPA regulations affect truck owners.

Jul 29, 2024 · Diesel exhaust fluid, or DEF, is a key component in lowering pollutants emitted from diesel engines, helping to improve efficiency and reduce emissions.

Feb 10, 2025 · Learn everything you need to know about diesel exhaust fluid (DEF), how it works, and how to choose the best DEF fluid for your truck to keep it running smoothly.

Choosing the right Diesel Exhaust Fluid for your vehicle is essential to ensure optimal performance and longevity of your engine’s emission control system. Here’s a step-by-step …

DEF is not a fuel additive; instead, it is a precise mixture of urea and deionized water that is sprayed into the exhaust gas before entering the diesel engine’s SCR catalyst.

Aug 2, 2024 · Diesel Exhaust Fluid, or DEF, is comprised of de-ionized water and urea, a non-hazardous solution. Your favorite diesel vehicle releases NOx emissions into the air, and DEF …

DEF, also known as AdBlue or AUS 32 (aqueous urea solution 32.5%), is a specially formulated solution that is injected into the exhaust stream of diesel vehicles equipped with Selective …

Apr 13, 2018 · DEF is "Diesel Exhaust Fluid" and, as a matter of fact, modern diesels run just fine without it. DEF is instead concerned with what comes out of modern diesel engines. Diesels …