All,
I used a Pall PCM and pulled a patch of my oil. I use Silkolene oil and the OEM MG filter, the oil is changed every 750 miles and the results were frightening!!
Common oil filters are of such a poor standard in filteration terms, the debris they do not pick up is huge!! We all change our oil far to often but with current synthetic technology there is no need, however its probably wise to do due to the poor filter technology we run in our cars.
Take a look at the link below, this very filter is used by the Ferrari F1 team (protect gearbox), Honda's British superbike team and many others PTP also used them while developing various ilkes of K series.
http://212.240.121.32/new/application.asp?id=4
Granted much of the K is aluminium, but tests have proven that they DO remove aluminium particulate.
The Mini module retails at around £150