The DEF cap keeps fluid inside the tank and dirt and debris out. It can, over time, develop cracks and leaks. Dirt in the diesel exhaust fluid will eventually settle in the catalytic converter, making it less effective, which might cause you to fail an emissions inspection. Diesel exhaust fluid is not toxic, but it can corrode certain metals.
Diesel exhaust fluid (or DEF) has been a mandate for large highway vehicles since 2010—helping to reduce the pollution emitted by trucks and buses by as much as 90%.
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.sel exhaust fluid DEF is an aqueous urea solution made with 32.5 urea and 67.5 deionized water.It is standardised as AUS 32 aqueous urea solution in ISO 22241. DEF is used as a consumable in selective catalytic reduction SCR in order to lower NO x concentration in the .sel exhaust emissions from .sel engines..
The BLUEDEF .sel Exhaust Fluid 2.5 Gal will make a convenient and helpful addition to your vehicle care system, keeping your tractor running smoothly for a long time. About This Item Great for .sel .
The Consumable Fluidsel exhaust fluid is a mixture of synthetic, high purity, automotive grade urea and deionized water. This liquid is clear, nontoxic, nonflammable, non explosive, and .
.sel exhaust fluid is used by Selective Catalytic Reduction SCR technology in .sel vehicles’ emission systems to reduce Nitrogen Oxide NOx and particulate matter PM . SCR systems on .sel vehicles use DEF to cause a chemical reaction in the catalytic converter in which NOx reacts with the ammonia in the fluid, leading to a near .