Treat DEF How You Treat Fuel

Fuel is the energy that drives any fleet. Fluctuations in fuel price can mean big changes in fleet operations. For businesses that run diesel fleets, DEF is equally as important as fuel, and managing DEF supply is equally as critical to successful operations as managing fuel supply. To keep NOx emissions in check, most manufacturers have turned to Selective Catalytic Reduction systems that inject Diesel Exhaust Fluid (DEF) into the exhaust to break down NOx into nitrogen and water. DEF is 32.5% urea and 67.5% de-ionized water. While simple, it’s a specialized fluid that, like diesel fuel and oil,...

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