Diesel Exhaust Fluid - Bulk Oil

posted on Thursday, February 11, 2021 in Parts & Service

What is DEF?

     DEF, or diesel exhaust fluid, is used in a selective catalytic reduction (SCR) system to remove nitrogen oxides (NOx) from engine exhaust. The main components of the SCR system include the SCR catalyst, the DEF injector, the DEF tank, and the DEF supply module and filter. DEF is injected into the exhaust stream prior to the SCR catalyst. NOx in the exhaust stream is then converted into harmless nitrogen and water through a chemical reaction.

     DEF is 32.5 percent DEF-grade urea and 67.5 percent demineralized water. This ratio provides the lowest possible freeze point.

     DEF is also: Colorless, Nonflammable, Nontoxic, Slightly corrosive, 9.1 lb./gal.

     Many names and terms are used for DEF: Urea, Aqueous urea solution  - AUS32®*, AdBlue®**, NOx reduction agent – ARLA 32TM, Diesel exhaust fluid

Diesel Exhaust Fluid Quick Tips

  • Compatible with all engines using selective catalytic reduction (SCR) after-treatment technology
  • Always store in sealed containers away from extreme temperatures
  • When stored properly, expect a shelf life comparable to oils and coolants
  • Purchase in amounts that can be used in a reasonable length of time
  • Use only approved compatible equipment when handling DEF
  • DEF is crystal clear with a light ammonia smell. It should not be used if it is cloudy or has a colored tint or a profound ammonia smell
  • Never add DEF to the diesel tank
  • The machine fill cap is blue with a DEF symbol

Portable Dispensing Unit

  • Removable 12V DEF Dispensing Package (without drop tube)
  • Auto shutoff stainless steel nozzle
  • Sight gauge
  • Lockable enclosure
  • Available in a 20-gal. tank or a 60-gal. tank

DEF Portable Dispensing Unit

Dispensing Package

  • DEF pump with 20’ (6.1 m) hose
  • Auto shutoff stainless steel nozzle
  • Closed System Dispense Coupler
  • Drum valve and tube
  • Fully assembled...Plug and Play!
  • Works with both Drums and Totes
  • Industry leading 5 year pump warranty

DEF Dispensing Package


Save $$ with Bulk Oil

  • Eliminates waste
  • More economical than buying individual drums or pails
  • Dispenses oil to the last drop
  • On-site delivery and disposal
  • Save time and expense
  • Allows direct fill from a metered hose
  • Reduces risk of oil contamination
  • Reduced handling of drums and pails
  • We supply the tanks

Bulk Oil

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FEBRUARY & AUGUST 2021!