Super Tech DEF Diesel Exhaust Fluid, Made in USA, 2.5 Gallon (9. L), 3-Pack
BlueDEF(R) is a nontoxic solution of 67.5 percent purified water and 32.5 percent ultra pure automotive grade urea. BlueDEF(R) is not a fuel or fuel additive. These are the highest quality and safety standards in place to ensure optimum SCR performance.