DEF Diesel Exhaust Fluid, 55 Gallon Drum

iesel Exhaust Fluid (DEF) is a specially formulated liquid that helps keep diesel-powered vehicles running clean and meeting tough emissions standards. Made from a blend of purified water and automotive-grade urea, DEF is used in trucks, cars, and even some generators with Selective Catalytic Reduction (SCR) systems. When added to your vehicle’s DEF tank, it works to reduce harmful pollutants from the exhaust, turning them into harmless nitrogen and water vapor. It’s easy to use, stored in a separate tank from diesel fuel, and helps your engine stay efficient while protecting the environment. If you drive a diesel vehicle or operate equipment with an SCR system, keeping your DEF tank full is essential for smooth performance and compliance with emissions regulations.