I change mine every 3,000 miles. For me, that is about every 5 weeks.
You do the math but I think that relates to about 4600 KM so that 5,000 Klicks would be about right. You do the conversion math and check for yourself.
With synthetic oil, you can go further. 5,000 miles is common, and many go even further. That would relate to about 7800 KM so that about 8,000 KM would be reasonable.
