what is adblue made of pigs urine

No, AdBlue is not made of pig urine. AdBlue is a high purity, chemically manufactured solution of high-purity urea (32.5%) and deionised water (67.5%) . Urea is a chemical compound that is found in urine from all animals, including humans and pigs, but AdBlue is not made from animal by-products. The reason for the rumors that AdBlue is made from pig urine is that urea is one of the components of urine, but it is synthetically produced for AdBlue. AdBlue is a clear, colorless, and non-toxic liquid that is added to certain diesel vehicles fitted with SCR (Selective Catalytic Reduction) technology to treat exhaust gas and reduce emissions.