Diesel Exhaust Fluid (DEF) is a solution used in Selective Catalytic Reduction (SCR) systems on diesel engines to reduce emissions of nitrogen oxides (NOx). The phrase references the practice of purchasing this fluid in large quantities from nearby suppliers. An example scenario involves a trucking company seeking to minimize operational costs by acquiring DEF in bulk to supply its fleet.
Acquiring DEF in substantial volumes presents several advantages, including reduced per-unit cost, decreased frequency of replenishment, and streamlined inventory management. Historically, smaller operations might have purchased DEF in individual containers, leading to higher expenses and logistical inefficiencies. The ability to source it locally ensures timely access and reduces transportation costs from distant suppliers.
