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 …

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 …

What does the abbreviation DEF stand for? Meaning: defendant; defense. How to use def in a sentence.

Apr 17, 2023 · DEF is made up of 67.5 percent deionized water and 32.5 percent high-purity urea. A quick internet search tells us there are roughly 100 American Petroleum Institute (API) …

Def definition: definitely.. See examples of DEF used in a sentence.

Jul 29, 2024 · DEF is a key component in lowering pollutants emitted from diesel engines, helping to reduce harmful emissions. Long-haul truckers and diesel engine enthusiasts had to rethink …

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 …

8 meanings: slang very good, esp of hip-hop definition → 1. a formal and concise statement of the meaning of a word, phrase,....

Define def. def synonyms, def pronunciation, def translation, English dictionary definition of def. cool Abused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary …

1 day ago · Def Leppard, with Tesla opening, was the opening-night headliner at Summerfest 2025 in Milwaukee June 19. The hair-metal stalwarts stayed mostly with the hits, but also …