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67af6faa3d50f92eb2c2d77e Api Def Resource Page

API launches DEF resource page

Feb. 14, 2025
New guidance offers consumers and industries operating diesel-powered trucks valuable insights on purchasing and storing diesel exhaust fluid.

The American Petroleum Institute (API) recently launched a new resource page that provides crucial information on diesel exhaust fluid (DEF) quality, purchasing, and storage.

The information is tailored to meet the needs of consumers and professionals in trucking, agriculture, construction, and other industries that operate diesel-powered trucks and equipment that require DEF, API reported.

“The API DEF Consumer Guidance offers consumers and drivers, fleet managers, and others clear guidance to ensure optimal performance and compliance with emissions standards,” Bill O’Ryan, API senior manager for EOLCS and DEF, said in a news release. “This crucial information is designed to help expand industry knowledge and operational efficiency.”

This resource page details the importance of using high-quality DEF, explaining the characteristics of properly formulated DEF and the potential risks associated with substandard products. Using API-licensed DEF can ensure that it meets the high standards required by engine and vehicle manufacturers. The DEF resource page can help professionals make informed decisions that protect their valued investments and contribute to a cleaner environment.

In addition to quality guidelines, practical advice on purchasing and storing DEF is offered. Truck drivers, farmers, construction managers and others operating diesel-powered vehicles and equipment can access expert recommendations on sourcing DEF from reputable suppliers, ensuring product integrity from purchase to application. The page also outlines best practices for storing DEF, highlighting considerations such as temperature control and contamination prevention to maintain fluid efficacy. A downloadable Do’s and Don’ts Guide for DEF storage is available as a resource for consumers and shops.

Additional information and guidance will be added, and consumers and industry professionals are encouraged to bookmark and visit the resource page regularly to keep up on information about purchasing, using, and storing API-certified DEF.