Links partners:

The API Diesel Exhaust Fluid (DEF) Certification Program

The American Petroleum Institute (API) provides quality certification of Diesel Exhaust Fluid (DEF) intended for use in SCR-equipped cars and trucks. The API hosts an online directory of certified DEF suppliers, and provides information about registering as a supplier.

Flowserve Corporation

Flowserve is the recognized world leader in supplying pumps to the oil, gas, chemical, power and general industries.

Mansfield Oil Company

Mansfield Energy is a leading fuel and DEF distributor providing Blue Leaf Diesel Exhaust Fluid, equipment, and logistics management across the US and Canada.


NOXGUARD DEF brand is an established independent brand of Diesel Exhaust Fluid produced by Transliquid Technologies. 

Titan Chemical Transfer Solutions

Titan Chemical Transfer Solutions, LLC provides a complete line of "Purpose Built Solutions" for your DEF needs. From DEF Drum & Tote pump systems to all your DEF tank and off-road requirements Titan is your choice for DEF solutions.


Websites we like:


Yara International produces Air1 branded Diesel Exhaust Fluid (DEF) for the North American market and has operations in all major global markets.


Old World Industries produces BlueDEF branded Diesel Exhaust Fluid (DEF) for the North American markets, with operations in other key global markets.

Blue Sky

Prime Lube, Inc., a leading manufacturing and distributor of petroleum, lubrication products and DEF, and is proud to offer this trusted emission-control solution to its North American customers.

Cummins Filtration

Since 2010 Cummins has used Selective Catalytic Reduction (SCR) technology in on-highway and off-highway engines to meet the EPA 2010 emission standards.


KostUSA produces DEFendal branded Diesel Exhaust Fluid (DEF) for the North American and Mexican markets.

Detroit Diesel

Detroit Diesel, an affiliate of Daimler Trucks North America, manufactures engines incorporating Selective Catalytic Reduction (SCR) to meet the EPA 2010 emission standards.

This website provides a comprehensive range of news and information about SCR technology.

Gilbarco Veeder-Root

Gilbarco Veeder-Root supplies Diesel Exhaust Fluid (DEF) dispensers to fleets and retail locations offering bulk DEF dispensing.

Irving Blending & Packaging

Irving Blending & Packaging produces Irving Diesel Exhaust Fluid (DEF) located in Atlantic Canada and available through distributors in North America and worldwide.


Separation by Design supplies the KleerBlue series of Diesel Exhaust Fluid (DEF) storage and dispensing systems to the North American market.

Koster Advisory

Koster Advisory can help you to set up your DEF production according to the industry standard ISO 22241, having been doing so since the early stages of the European industry.

MacEwen Petroleum Inc

MacEwen Petroleum offers you the most competitive and reliable supply of Diesel Exhaust Fluid in Canada.

Mack Trucks

Mack Trucks manufactures heavy-duty vehicles incorporating Selective Catalytic Reduction (SCR) technologies into its engines to meet the EPA 2010 emission standards.

Mack - Talking SCR

Dave McKenna, Director of Powertrain Sales & Marketing at Mack, answers questions about SCR and DEF on his blog.

Micro Matic

Micro Matic is a designer and manufacturer of unique closed liquid transfer valve systems. These systems enable the control and delivery of consistent DEF purity.

Oilmen's Truck Tanks

Oilmen's provides a range of Diesel Exhaust Fluid (DEF) delivery tools, including tote dispensers and delivery trucks.

Pilot Flying J

Pilot Flying J truck stops provide drivers across North America with on-island bulk DEF and 2.5 gallon containers.


PIUSI supplies dispensing and metering systems for Diesel Exhaust Fluid (DEF) users.

Ports Petroleum

Ports Petroleum has been providing quality fuel products and services since 1948. Since the introduction of DEF in the US market Ports has been a leading supplier; offering timely deliveries, competitive pricing and excellent customer service.

PPC Lubricants

PPC Lubricants is the master distributor for Old World Industries' BlueDEF brand in the U.S. mid-Atlantic region.

SPATCO DEF Dispensing Solutions

SPATCO DEF was one of the first manufacturers of DEF equipment, from small pumps for 55 gallon drums to 20,000 gallon above ground tank solutions.

TA Travel Centers of America

TA Travel Centers and Petro Stopping Centers provide drivers across North America with on-island bulk DEF and 2.5 gallon containers.

Tecalemit Inc

TECALEMIT is the right partner when it comes to the accurate and reliable transfer, filling and measurement of operating fluids such as fuel, oil, DEF, grease, air, nitrogen and chemicals.

Wikipedia's Diesel Exhaust Fluid page

Wikipedia hosts an information page about DEF.


Xerxes Corporation, together with its parent company, ZCL Composites Inc., is North America's leading manufacturer of underground storage tanks. Fiberglass underground tanks have become the clear choice for DEF bulk storage at retail and commercial facilities.