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Diesel Exhaust Fluid (DEF)

Diesel Exhaust Fluid (DEF) is a urea-based fluid specifically engineered for diesel engines using Selective Catalytic Reduction (SCR) to reduce vehicle emissions.  DEF is a solution made up of purified water and 32.5 percent urea that is used as a carrying agent for the ammonia needed to reduce nitrogen oxide (NOx) emissions from diesel engines into nitrogen, water and carbon dioxide (CO2).
Selective Catalytic Reduction (SCR)
Selective Catalytic Reduction (SCR) is a cost-effective and fuel-efficient vehicle emissions control technology designed to reduce diesel engine emissions.  In heavy duty commercial trucks, SCR has the ability to reduce emission to near-zero levels while also delivering a 3-5% fuel savings.   SCR allows diesel powered passenger cars and light duty trucks to meet strict emissions and fuel efficiency guidelines affordably without compromising driving power and performance.  SCR is one of the few emissions control technologies that is as good for business and the environment.
SCR technology uses the DEF as a reducing agent which reacts with NOx (combustion by-product) to convert the pollutants into nitrogen, water and tiny amounts of carbon dioxide (CO2) – natural elements common to the air we breathe everyday.  SCR technology can reduce:
  • NOx emissions by up to 90%
  • Hydrocarbons (HC) and carbon monoxide (CO) emissions by 50-90%
  • Particulate matter (PM) emissions by 30 – 50%
PetroLiance sells ISO Certified DEF in Bulk, Totes, Drums, and 2.5 Gallons.  PetroLiance maintains a complete line of equipment designed for the storage and handling of DEF.