Technician a Says That Diesel Engines That Use EGR Systems

Multiple Choice

Technician A says that diesel engines that use EGR systems often have longer engine break-in periods. Technician B says that the use of EGR gas introduces abrasive soot into the cylinders, which shortens the break-in period. Who is correct?

A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B