Remaining faithful to my old school ways of vehicle maintenance, I changed the oil and filter upon reaching 1000 miles on the odometer. I then chose to disassemble the filter element to see what has been happening inside.
Sry for the blurry photo . . . my camera is made in the USA.
From the small strip of the filter element, you can see a modest amount of carbon buildup, and a few specks of foreign objects.
I fished out all the F.O. I could find that were more than 1mm in length. Much to my surprise, I only found 3 rubber pieces, 1 mysterious piece of red plastic, and 13 metal shavings; 17 items in total.
There were many more pieces too small to pick up, but this tiny number is quite the testament to the precision engineering that has gone into this engine. I have disassembled several oil filters from a '92 Subaru SVX, '98 BMW M3, '03 Jeep Liberty, and Rolls Royce T56 Turboprop engines (C-130 Hercules). This is by far the cleanest I have ever seen.
I am used to and quite loyal to the 3000 mile oil change interval, but from these findings, I'll be extending that interval significantly.