Two technicians are describing how to do a stationary regeneration. Technician A says that some SCR (selective reduction catalyst) systems can completely deplete the DEF (diesel exhaust fluid) before a fault code is set. Technician B says that after operating for more than 20 hours with depleted DEF, the vehicle will derate power. Who is right?

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The Answer of Two technicians are describing how to do a stationary regeneration. Technician A says that some SCR (selective reduction catalyst) systems can completely deplete the DEF (diesel exhaust fluid) before a fault code is set. Technician B says that after operating for more than 20 hours with depleted DEF, the vehicle will derate power. Who is right?

Two Technicians Are Describing How to Do a Stationary Regeneration