Diesel Exhaust Fluid is an aqueous solution of
Diesel Exhaust Fluid is an aqueous solution of ____?
[A]Urea
[B]Nitrogen
[C]Carbon
[D]Hydrogen
Urea
Diesel Exhaust Fluid is an aqueous solution of Urea. Diesel Exhaust Fluid is used in transportation to reduce the amount of nitrogen oxides (Nox) emitted into the air by diesel engines. DEF is a high purity chemical, comprised of 32.5% urea and 67.5% de-ionized water. Reference