Brand, viscosity and type of Motor oil, does it mater all that much if you change at half Man. intervals?

VW recommends I use castrol 5w-40 syntec and change at 10k mile intervals. I have some free Mobil 1 5w-30 that is not VW recommended. What if any difference would it make? If I change my oil at 5k miles can I use any brand synthetic motor oil between 0w-40 or 5/10w-30/40 with no negative results on my 2007 2.0t FSI engine?


Also is the european spec motor oil much better than the U.S. spec. I read the US full synthetic is not according to European standards. Thank youBrand, viscosity and type of Motor oil, does it mater all that much if you change at half Man. intervals?
No it doesnt..