FAQ - discoverDEF.com

What is Diesel Exhaust Fluid (DEF), where can I get it and why do I need it? Everything you ever wanted to know about Diesel Exhaust Fluid (DEF) and more at ...

Diesel exhaust fluid - Wikipedia

Diesel exhaust fluid (DEF) is an aqueous urea solution made with 32.5% urea and 67.5% deionized water. It is standardised as AUS 32 (aqueous urea solution) ...

API | Diesel Exhaust Fluid (DEF)

Diesel exhaust fluid (also referred to as DEF or AUS 32) is injected into the diesel exhaust stream and the heat from the exhaust, the fluid, and a catalyst convert ...

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