Who suggests that an abnormal amount of ash plugging in a diesel particulate filter could be due to oil incompatibility with a DPF?

The suggestion that an abnormal amount of ash plugging in a diesel particulate filter (DPF) could be due to oil incompatibility with a DPF aligns well with the understanding of how different oils can impact engine emissions systems. If oil used in the diesel engine has a high ash content, or if it is not designed for compatibility with a DPF, it can lead to increased ash buildup in the filter. This buildup can cause clogging, reducing the effectiveness of the DPF and potentially leading to engine performance issues.

Technician A’s emphasis on this factor highlights the importance of using the right type of oil to minimize ash production and ensure optimal DPF performance. In the context of diesel emissions systems, maintaining compatibility between oils and filters is a critical aspect of preventing premature plugging of the DPF, and this understanding is essential for technicians working on diesel engines.

The knowledge that oil choices can significantly affect DPF function is crucial for diagnosing issues related to ash accumulation, making Technician A's insight valuable for effective maintenance and repair practices.