Just found out from PML that the "Next Service" mielage when you switch on engine is only indicative. Should send for oil change at least every 10,000 kms. I told him that SA told me only need to service once warning light comes on. He was quite diplomatic about telling me that the SA doesn't know about this. So now at 13,000 kms, they're going to change oil. Anyway, I drove slowly for about 1,200 kms before I started unleashing the power of my 528i. That was about 6 months ago. Now there's a lot of white smoke when I accelerate hard, so I think I may have damaged something. Anyway it's with PML now and their trying to fix the problem. My advise is to change oil regularly. It prolongs the life of the engine, which will save you a lot of money in the long run, especially if it needs to go in for major works on the cylinders in the furture. To me, "Prevention is better than cure"