DEF (Diesel Exhaust Fluid)

Arneson Oil has all of your DEF (Diesel Exhaust Fluid) Solutions; From 2.5 gallon jugs, 55 gallon drums, and 275 & 330 gallon totes. Drum pumps, Tote pumps, and more. Arneson Oil is a leading full-service supplier of API certified DEF (Diesel Exhaust Fluid) TerraCair®.

DEF (Diesel Exhaust Fluid) is a specific composition of urea for application in transportation to reduce the amount of nitrogen oxides (NOx) emitted into the air by diesel engines. DEF is a high purity chemical, comprised of 32.5% urea and 67.5% de-ionized water.

DEF is produced to an international standard (ISO 22241) and is American Petroleum Institute (API) certified.

As explained by the American Trucking Association (ATA), “To reduce NOx, a small amount of DEF is injected directly into the exhaust upstream of a catalyst. The DEF vaporizes and decomposes to form ammonia (NH3), which in conjunction with the SCR catalyst, reacts with NOx to convert the pollutant into nitrogen (N2) and water (H2O).”

DEF (Diesel Exhaust Fluid) is one of the key elements of the Selective Catalytic Reduction (SCR) process used by most medium and heavy-duty engine builders to meet EPA regulations. TerraCair® is a nontoxic solution of purified water and ultra-pure automotive grade urea. TerraCair® is not a fuel or fuel additive but it helps improve fuel economy by up to five percent while simultaneously reducing exhaust emissions. TerraCair® meets ISO Standards 22241 for purity and composition and is an American Petroleum Institute (API) certified DEF. Our closed liquid dispensing system provides everything you need to effectively dispense your TerraCair®. These reusable systems are also cost effective by providing a significant savings over single-use containers and are available for fleet, retail and commercial applications.

DEF (Diesel Exhaust Fluid) is a urea-based fluid specifically engineered to control NOx emissions from diesel engines.   As the USA prepares for the Environmental Protection Agency’s Tier II Bin 5 emission standards upgrade, Arneson Oil is dedicated to meeting all of your supply needs.

DEF is a key component of Selective Catalytic Reduction (SCR) systems which help diesel vehicles meet strict emission regulations.