Who accurately describes the effect of oil type on ash plugging in a diesel particulate filter?

The correct answer highlights that Technician A provides an accurate description of how the type of oil used in a diesel engine can influence ash accumulation in the diesel particulate filter (DPF). Different oils have various formulations, which can affect the quantity and characteristics of the ash produced during combustion.

For instance, certain oil compositions, especially those that contain higher levels of additives, can lead to increased ash generation. This ash can accumulate in the DPF over time, leading to plugging and hindering exhaust flow. Understanding the relationship between oil type and ash production is crucial for maintaining proper engine function and extending the life of the DPF.

In contrast, Technician B may not accurately convey this relationship, leading to incomplete or misleading information regarding oil choice and DPF maintenance. Consequently, the correct understanding provided by Technician A is essential for diesel technicians aiming to mitigate ash-related issues in the exhaust systems of diesel engines.