Diesel Exhaust Fluid (DEF)

DEF

Diesel Exhaust Fluid (DEF) is one of the key elements of the Selective Catalytic Reduction (SCR) process used by Diesel Engine builders to meet EPA 2010 regulations. Diesel Exhaust Fluid is a nontoxic solution of 67.5% purified water and 32.5% ultra pure automotive grade urea. Diesel Exhaust Fluid is not a fuel or fuel additive. Instead, when injected into the exhaust stream and passed over a catalyst, Diesel Exhaust Fluid helps convert NOx into nitrogen gas and water vapor – two harmless and natural components of the air we breathe.

What Does Diesel Exhaust Fluid Do?

Diesel Exhaust Fluid is sprayed into the diesel exhaust streams of diesel engines to lower the concentration of nitrogen oxide, NOx, in emissions.

How Diesel Exhaust Fluid Works?

When injected into the exhaust stream with a specialized dosing module, DEF’s water vaporizes, leaving ammonia molecules en route to the catalytic converter; once there, it converts NOx molecules into harmless nitrogen and water vapor—making for cleaner emissions. To ensure Selective Catalytic Reduction (SCR) performance, diesel exhaust fluids must adhere to the ISO 22241 Standards.

What is DEF Fluid Made Of?

Diesel Exhaust Fluid (DEF) is made with 32.5% urea, (NH2)2CO, and 67.5% deionized water. Diesel Exhaust Fluid (DEF) is non-toxic and safe to handle, but it can corrode some metals, so it must be stored and transported carefully.

Available In

  • 2.5 Gallon Cases
  • 55 Gallon Drums
  • 275/330 Gallon Totes
  • Bulk

Call 800-223-1337 extension 3 to confirm availability.