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Diesel exhaust fluid (DEF; also known as AUS 32 and sometimes marketed as AdBlue[3]) is a liquid used to reduce the amount of air pollution created by a diesel engine. Specifically, DEF is an aqueous urea solution made with 32.5% urea and 67.5% deionized water.
What is DEF Made of? DEF is a chemical solution containing exactly 67.5% deionized water and 32.5% automotive-grade, aqueous urea. The urea component is an organic compound made of nitrogen, hydrogen, carbon, and oxygen.
3 Οκτ 2024 · What Is DEF? Diesel exhaust fluid is an automotive-grade combination of urea and deionized water, which you inject into the exhaust stream of a diesel engine to help turn NOx, or oxides of...
What is Diesel Exhaust Fluid (DEF) Made of? Diesel Exhaust Fluid is created from about two parts deionized water – highly purified H2O – and one part urea –often used in fertilizers . Urea is also a compound found in urine, although it is not urine in the DEF form.
Since around 2002, SCR (Selective Catalytic Reduction) systems that use Diesel Exhaust Fluid (DEF) made their appearance in the automotive market. So what’s in DEF? DEF is a solution (or mixture) of 32.5% Urea and 67.5% de-ionised water.
30 Ιουλ 2021 · From the particulate filter, the exhaust gas travels past a nozzle which sprays diesel exhaust fluid into the stream of gases. DEF is made from deionized water and a very pure form of urea.
27 Αυγ 2019 · Diesel Exhaust Fluid, otherwise known as DEF, is a required component of any diesel-run vehicle. Whether you’re new to working with this fluid, or you simply need a refresher course, we’re here to help. Here are some frequently-asked-questions and quick DEF facts to make your job easier.
