The use of _______ can introduce more soot into the oil, which requires oil to be better able to dissolve and hold soot in the lubricating oil until it can be removed by the filter.
A)SCR (Selective Catalyst Reduction)"
B)EGR (Exhaust Gas Recirculation)"
C)DEF (Diesel Exhaust Fluid)
D)DPF (Diesel Particulate Filter)"

Question

Quizplus · Accepted Answer

EGR (Exhaust Gas Recirculation) recirculates a portion of the engine's exhaust back to the engine cylinders, which can introduce more soot into the oil. This requires the oil to have properties that allow it to dissolve and hold the soot until it can be filtered out.

The Use of _______ Can Introduce More Soot into the Oil