5000 or 10000? You always hear the "factory oil is made for breakin" or whatever. Is there any legitimacy to that or is it just a standard brew? The book implies 10000 with the free service plan. There is a premium service plan that has it changed every 5000 (for one of their SUV TDIs, not Golf TDI). This makes me think there'd be no harm in it and "factory oil" is nonsense. What do people think, 5000 or 10000?