The last thing and also strange is magnetic particles in the oil! It is not strange because many oil producers already add magnetic particles into the oil because it reduces wear. The usage of the magnetic particles can be explained very shortly and briefly: When the engine is turned off the magnetic particles cling to the engine to lower the wear threat on the startup.
in europe, oil change interval is 10 000km everyone knows that
Thanks for your comment Milan. Where are you from friend? 🙂