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Diesel exhaust fluid (DEF; also known as AUS 32 and 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.
3 paź 2024 · Diesel exhaust fluid, or DEF, is a key component in lowering pollutants emitted from diesel engines, helping to improve efficiency and reduce emissions.
DEF is not a fuel additive; instead, it is a precise mixture of urea and deionized water that is sprayed into the exhaust gas before entering the diesel engine’s SCR catalyst. Through a chemical reaction, the DEF helps break down the nitrogen oxides (NOx) generated by the exhaust system into environment-friendly nitrogen, water vapor, and ...
DEF, an acronym for Diesel Exhaust Fluid, is the trucking industry’s response to U.S. Environmental Protection Agency standards requiring all medium and heavy-duty diesel vehicles to significantly reduce engine emissions, particularly nitrous oxide as well as particulate matter.
1 dzień temu · A diesel vehicle’s SCR system uses a method of selective catalytic reduction to remain in compliance with NOx regulations. The SCR system regularly consumes DEF to treat NOx. According to ...
15 lip 2023 · Diesel Exhaust Fluid, or DEF, is a non-toxic solution used in modern diesel engines to reduce harmful emissions. It is a mixture of urea and deionized water, which is injected into the exhaust stream to convert harmful nitrogen oxides (NOx) into harmless nitrogen and water vapor.
13 kwi 2018 · Autoweek explains. This urea-based fluid helps keep diesel viable in an ever-tightening emissions standards world. By Robin Warner Published: Apr 13, 2018. Save Article. Stellantis. DEF:...
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