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Passenger car using an AdBlue pump. 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.
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.
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...
9 Σεπ 2023 · How to Choose the Best Brand of DEF for Your Vehicle. Choosing the right Diesel Exhaust Fluid for your vehicle is essential to ensure optimal performance and longevity of your engine’s emission control system. Here’s a step-by-step guide to help you select the best brand of DEF for your needs:
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.
20 Μαρ 2023 · It’s called DEF for short, but the very first thing you may be wondering is what on earth is diesel exhaust fluid, and the answer is quite simple: it’s a fluid that gets injected into the exhaust system of your truck to help reduce pollution.
