DEF Diesel Exhaust Fluid 32%

DEF (Diesel Exhaust Fluid) in a 2.5-gallon container is a non-toxic, high-purity solution of 32.5% synthetic automotive-grade urea and 67.5% deionized water used in the Selective Catalytic Reduction (SCR) systems of most modern diesel engines. It helps reduce nitrogen oxide (NOx) emissions by converting them into harmless nitrogen gas and water vapor, while also potentially improving fuel economy.