It is not uncommon for oil filters to become clogged or collapsed after extended use or if the vehicle is driven in harsh conditions or if the oil is not changed at the recommended intervals. The fact that the rest of the filter looked good suggests that the issue may have been caused by a specific issue, such as a high level of contaminants in the oil or a problem with the filter design.
If you have concerns about the performance of the oil filter, it is a good idea to consult a good mechanic or the manufacturer for guidance. They may be able to provide further insight into the cause of the issue and recommend a suitable replacement filter.
The results of the oil analysis that you had conducted by Blackstone Labs should provide useful information about the condition of the oil in your vehicle. The TBN (total base number) and TAN (total acid number) can indicate the level of contaminants and degradation in the oil, while the particle count can help to identify any particulate matter that may be present in the oil. These results, along with any other diagnostic information, can help to determine the cause of the issue and identify any potential problems that may need to be addressed.
