Diesel Exhaust Fluid (DEF) or AdBlue is an aqueous solution of urea, effective in reducing Nitrogen oxide emissions. It is a popular fluid mix for diesel and gasoline fuel-based vehicles. Diesel exhaust fluid is extensively used in selective catalytic reduction (SCR) and exhaust gas recirculation (EGR) to reduce the emission of nitrogen oxides.
The exhaust gasses are treated with DEF in the...
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