Equal, Less and Greater Than Symbols - Math is Fun
As well as the familiar equals sign (=) it is also very useful to show if something is not equal to (≠) greater than (>) or less than (<) These are the important signs to know: The "less than" sign and the …
Diesel exhaust fluid - Wikipedia
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 …
What Is DEF and How Does It Work? - MotorTrend
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.
Diesel Exhaust Fluid - Shop DEF Fluid - AutoZone
Reduce emissions and keep your diesel vehicle running clean with diesel exhaust fluid (DEF) from AutoZone. We sell the best brands, including AutoZone, Lumax, and Peak Blue DEF fluid. We also …
DEF Definition & Meaning - Merriam-Webster
What does the abbreviation DEF stand for? Meaning: defendant; defense. How to use def in a sentence.
What Exactly Is DEF & What Does The Acronym Stand For?
Apr 19, 2025 · The letters DEF stand for diesel exhaust fluid. Sometimes, you'll hear people refer to it as DEF fluid, and all three formats are acceptable. If you're interested in learning more about DEF,...
Diesel Exhaust Fluid (DEF): Everything You Need to Know | Diesel …
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.
What is DEF? How Does DEF Fluid Work in Diesel Engines
Apr 2, 2024 · Diesel Exhaust Fluid (DEF) is a non-toxic, colorless liquid made of urea and deionized water. It’s injected into the exhaust stream of diesel engines to break down harmful nitrogen oxides …
What to Do If You Accidentally Put DEF in Your Diesel Tank
5 days ago · Putting diesel exhaust fluid (DEF) in a diesel fuel tank can lead to significant repair costs if it is not handled correctly. If you identify it early and take the right precautions, you can correct the …
What is DEF? How it Works and Why it's Essential for Fleets | Geotab
Jul 17, 2025 · DEF is a nontoxic fluid used in diesel engines to reduce emissions. In this guide, learn what DEF is, how it works and why it’s essential for fleet compliance.