The Truth About SCR
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If you take proper care of your SCR-equipped truck, and fill the DEF tank, the downtime will be minimal. If you’re asking about training, it’s as simple as reading and understanding a fuel gauge and filling a tank. If you’re talking about running out of DEF, you should know that drivers can run in derate mode in order to reach a DEF location if they run out. This federally mandated mode allows the vehicle to run at a lower rate of speed which hasn’t yet been determined by the EPA.
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That’s how far you can drive on less than one 23-gallon tank of DEF. DEF re-fills are needed only once every 2.5 fuel fillings, or roughly every 7,500 miles.
DEF - Diesel Exhaust Fluid-is an organic, non-toxic compound made of 33.5% urea and 66.5% ionized water.