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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.
To comply with cutting down emission levels, diesel engine manufacturers as a whole decided to implement a selective catalytic reduction (SCR) system, which includes an SCR catalyst, a pump, a tank, lines, an injector, and a synthetic, non-toxic diesel exhaust fluid (DEF).
17 Δεκ 2023 · Pump Issues: The pump, which moves the fluid from the tank to the injector, can fail due to mechanical issues or crystallization blockages. Regularly inspect the pump for signs of wear or damage. Keep the pump and its components clean to prevent blockages.
26 Απρ 2023 · Diesel exhaust fluid (DEF) is a non-hazardous solution used within a selective catalytic reduction (SCR) system to break down harmful pollutants (NOx) generated by a diesel engine. DEF is 32.5% urea, or aqueous ammonia solution, and 67.5% deionized water.
7 Μαΐ 2024 · Diesel Exhaust Fluid (DEF) is a liquid solution that helps lower diesel engines’ nitrogen oxide emissions. It works through a process called Selective Catalytic Reduction (SCR). DEF’s main ingredient is urea, which breaks down into ammonia when injected into the exhaust stream.
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.
9 Σεπ 2023 · Diesel Exhaust Fluid is a crucial component used in modern diesel engines equipped with Selective Catalytic Reduction (SCR) systems to reduce harmful nitrogen oxide (NOx) emissions. Here’s a breakdown of its properties, composition, and importance: Composition: It is made up of 67.5% deionized water and 32.5% high-purity urea.
