Diesel Exhaust Fluid

Quality DEF fuels for today's market!

Service Description

We offer Diesel Exhaust Fluid (DEF) for our clients. The best quality in the industry is our standard. We offer Diesel Exhaust Fluid for sale in cases, drums, totes and in bulk:

  • 2.5 Gallon Cases
  • 55 Gallon Drums
  • 300 Gallon Totes
  • and bulk deliveries from 100 tank wagon up to 5200 gallon tankers

We offer DEF in house transportation, pumping and storage equipment. We also offer the following products:

  • Auto Grade 32.5% (DEF)
  • Urea Solution 40%
  • Urea solution 50%
  • API Certified

Geo H. Green Oil, Inc. gleans from it’s nearly 100 years of experience to supply our clients with quality fuels for today’s market.

What is Diesel Exhaust Fluid?

Diesel Exhaust Fluid (DEF) is an emissions control liquid required by modern diesel engines. It is injected into the exhaust stream. DEF is never added to diesel fuel. It is a non-hazardous solution of 32.5% urea in 67.5% de-ionized water. DEF is clear and colorless, and looks exactly like water. It has a slight smell of ammonia, similar to some home cleaning agents. DEF is used in by Selective Catalytic Reduction (SCR) technology to remove harmful NOx emissions from diesel engines.

In January 2010, the U.S. Environmental Protection Agency (EPA) brought in new emissions standards requiring medium- and heavy-duty vehicles to significantly reduce engine emissions, particularly NOx and particulate matter (PM). Vehicle manufacturers use SCR to meet these standards. DEF is sprayed into the exhaust, breaking down NOx gases into nitrogen and water using an advanced catalyst system. As a result most new diesel trucks, pickups, SUVs, and vans are now fitted with SCR technology and have a DEF tank that must be regularly refilled.

SCR is a so-called “aftertreatment” technology, which means that it destroys harmful emissions after combustion. This gives manufacturers greater scope to tune engines to improve fuel efficiency and increase power. Owners of SCR vehicles enjoy greater reliability and longer oil change intervals, which add up to impressive operating cost savings over the life of the vehicle.

For more information, contact Roy Blackston directly at:

PHONE: (706) 633-6780

FAX: (855) 373-7150
HOURS: Monday-Friday, 8:00am-5:00pm
EMAIL: Fill out form below.

Your Satisfaction – Our Priority

With nearly 100 years of experience, we believe we are qualified to serve you best! Call (770) 964-6125 or click the button to place an order.