PRIME GUARD Ultrapure Diesel Exhaust Fluid (DEF) is a high-quality solution designed to help reduce harmful emissions from diesel engines. This 2.5-gallon container is ideal for use in diesel-powered vehicles equipped with Selective Catalytic Reduction (SCR) systems. The ultrapure formulation ensures efficient SCR performance, reducing nitrogen oxide (NOx) emissions and helping to meet environmental standards. This DEF is non-toxic, colorless, and odorless, offering an easy and safe solution for maintaining the performance of your diesel vehicle’s emission system. With the PRIM00250 model, you get a reliable and premium product for long-term engine efficiency and compliance with emission regulations.