Diesel Exhaust Fluid (DEF)

Ports Petroleum has been supplying its customers with diesel exhaust fluid since the product was introduced to the North American market in 2010. Our experience and relationships in the industry have provided us an opportunity to start manufacturing our own branded DEF under the ArmorBlue name.

ArmorBlue Logo

ArmorBlue is a 32.5% urea solution. It is manufactured to ISO 22241 specifications and is API certified. ArmorBlue is compatible with Tier 4 final compliant equipment using Selective Catalytic Reduction (SCR) technology.

American Petroleum Institute Diesel Exhaust Fluid Certification


Automatic Refill Program

Take the hassle out of ordering diesel exhaust fluid with our automatic Keep-Fill Program. This program sets you up with an automatic delivery schedule so your DEF tanks are never on empty!

Free DEF Testing

Diesel Exhaust Fluid is a very sensitive fluid and can easily be contaminated by hydrocarbons and dilution. Whether you purchase your DEF from Ports Petroleum or another supplier, you can send us a sample of your DEF and we will test it for FREE!

Sizing Options

No matter what size operation you have, ArmorBlue has flexible packaging options and a nationwide distribution network that can get you DEF when and where you need it. ArmorBlue is packaged in a variety of sizes including 1 and 2.5 gallon containers, 55 gallon drums, 275 and 330 gallon totes, and bulk DEF quantities.

2.5 Gallon Case of ArmorBlue Diesel Exhaust Fluid
55 Gallon Drum of ArmorBlue Diesel Exhaust Fluid
275/330 Gallon Totes of ArmorBlue Diesel Exhaust Fluid
Bulk DEF of ArmorBlue Diesel Exhaust Fluid

Pumps, Hoses, Meters, and More!

Ports Petroleum also offers industry leading equipment designed for DEF. Whether you are a small garage or a nationwide fleet, we have diesel exhaust fluid equipment to fit your needs.

Visit our DEF Equipment Page, The DEF Equipment Catalog, or Shop our Amazon Store to view our full line of equipment.

ArmorBlue TD1 DEF Pump
ArmorBlue Outdoor DEF Shield

Quality You Can Trust

To maintain the integrity of the DEF we deliver, all our transportation equipment is used exclusively for DEF. Diesel exhaust fluid can easily become contaminated, which could cause the SCR catalyst to deactivate. Contaminated DEF can cause costly damage to your vehicle. Worried your DEF might be contaminated? Even if you are not a customer and did not purchase your DEF from Ports Petroleum, we will test your DEF for free. Just send us a sample!

What is DEF?

Diesel exhaust fluid is a non-toxic, clear, and colorless solution made of 67.5% de-ionized water 32.5% urea. DEF is used in by Selective Catalytic Reduction (SCR) technology to remove harmful NOx emissions from diesel engines.