Woodford Oil DEF tanker truck transporting diesel exhaust fluid safely

Diesel Exhaust Fluid (DEF) Supplier

Bulk and Packaged DEF Delivery for Fleets, Farms and Industrial Sites

Woodford Oil Company is an authorized Blue Sky DEF distributor and a local DEF supplier for fleets, farms and industrial sites across West Virginia and five neighboring states. We supply diesel exhaust fluid in 2.5-gallon packaged containers, deliver bulk DEF to on-site storage tanks on a schedule that matches your usage, and can provide tanks and dispensing equipment so you never run out. Request a DEF quote.

What Is DEF?

Diesel Exhaust Fluid (DEF) is a water-urea solution (32.5% high-purity urea and 67.5% deionized water). It is non-toxic, nonflammable, non-hazardous and non-explosive.

The purpose of DEF is to reduce nitrogen oxide (NOx) concentration in the exhaust emissions produced by diesel engines. The process by which NOx emissions are reduced is called Selective Catalytic Reduction (SCR).

DEF is generally carried in a separate storage tank in diesel-powered vehicles equipped with SCR technology. DEF is injected into the hot exhaust stream of an engine and absorbed onto a catalyst. In this way it helps break down the NOx gases in the exhaust into nitrogen gas and water vapor, both harmless to the environment.

Woodford bulk DEF delivery truck

Why Should I Use DEF?

In order to help reduce smog and air pollution, the U.S. Environmental Protection Agency issued NOx emissions standards in 2010 for diesel vehicles of all sizes. These emissions standards are very stringent and most light-duty and heavy-duty trucks are not able to meet the standards without using SCR.

How Can DEF Help My Fleet?

In addition to helping to meet NOx emission standards, DEF can also provide fuel savings. Fleet experience with heavy duty trucks model year 2010 and newer suggest 5% fuel savings compared to 2007 model year vehicles with similar engines.

Is All DEF the Same? Choosing a DEF Supplier

Not all DEF is created equal. You should make sure the DEF you are purchasing meets industry standards, including API and ISO requirements, to ensure it is manufactured properly, to high-quality standards, and is doing the job it’s supposed to do. Check out this article from Blue Sky, to learn more.

Woodford is proud to be an authorized Blue Sky DEF distributor. Blue Sky is a premier DEF supplier with regional manufacturing and distribution centers across North America.

Blue sky

Your Local DEF Supplier: Save Money With Bulk DEF Delivery

One of the best ways to save money on DEF is to make bulk purchases from Woodford. This is cheaper and easier than buying small containers at a retail store and hauling them back to your facility. You’re also assured of receiving high-quality Blue Sky DEF, rather than a lower quality brand.

Woodford delivers bulk and packaged DEF to fleets, farms and industrial sites across West Virginia and five neighboring states. We are well equipped to handle our customers’ DEF needs, and we can deliver on your schedule. We offer a wide range of quantities based on customer requirements—from basic 2.5-gallon containers to much larger, bulk quantities. We can also provide on-site storage tanks if necessary, and arrange ongoing deliveries to ensure you never run out of DEF.

If you’re on the road, we also provide DEF at the pump at several of our Woodford Express fueling stations at competitive prices.

DEF Supply Options: Packaged, Bulk and On-Site Tanks

Woodford supplies DEF in the format that fits how much your operation uses.

  • Packaged DEF. 2.5-gallon containers suit owner-operators, small fleets and farm equipment that only need an occasional top-off.
  • Bulk DEF delivery. For fleets and industrial sites, we deliver DEF in bulk to an on-site storage tank on a schedule that matches your usage. Bulk buying lowers your cost per gallon and removes the need to handle and dispose of small containers.
  • On-site storage tanks. If you do not have DEF storage, we can provide a tank and dispensing equipment and set up ongoing deliveries so you never run out.
  • DEF at the pump. Drivers on the road can fill up at several Woodford Express fueling stations.

Tell us how many diesel units you run and we will recommend the right setup. Request a DEF quote or see our full range of commercial and industrial lubricants.

Not sure which format fits your operation? Compare cost, storage and handling in our guide to bulk DEF vs. jugs.

How to Store and Handle DEF

DEF is easy to handle, but it does need to be stored correctly to stay within specification.

  • Keep it cool and out of direct sunlight. Heat shortens shelf life. Stored at moderate temperatures in a sealed container, DEF typically lasts about a year.
  • Expect it to freeze in winter. DEF freezes at about 12°F. Freezing does not damage it, and it can be used again once thawed. Never add anything to DEF to stop it freezing.
  • Keep it clean. Even small amounts of dirt, fuel, oil or tap water can damage an SCR system. Use only dedicated DEF equipment and containers.
  • Buy to the standard. Look for DEF that meets ISO 22241 and carries API certification. The Blue Sky DEF we deliver meets both.

Learn More

Read our blog, Diesel Exhaust Fluid: What Is It and Why Does It Matter?, to learn more about DEF and how Woodford can help you save money on your next DEF purchase. You can also check out the Blue Sky website for additional technical product information.

Contact Woodford for more information on our DEF products, on-site storage, pricing, and delivery options.

Not all diesel exhaust fluids (or suppliers) are created equal.

There are a number of factors to consider, including product adherence to industry standards, manufacturing and performance quality, as well as convenient delivery options and competitive pricing.

Read our blog to learn more.

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