DEF (diesel exhaust fluid) is an emissions control liquid required by modern diesel engines. It is a non-hazardous solution comprised of urea and de-ionized water. Northdale DEF is tested for quality assurance, and we fully stand behind our product at all times. When injected to the engine exhaust stream (a process called selective catalytic reduction, or SCR), DEF eliminates 90% of exhaust pollutants by converting them to nitrogen and water. Users with newer vehicle engines that use DEF reduce fuel consumption by up to 5%.

We manufacture DEF in-house, locally at our plant in Drayton, North Dakota. We have room in our facility to store 28,000-gallons of finished product in addition to ample storage for packaged goods. Northdale offers DEF tanks in sizes of 600 gallons and up, along with pumps, hoses and other components for tank setup.