[quote=np2004] ...Also on my 04 330ci I do it every 7500 miles after I did the first oil change can I keep that the same or should it be done sooner in the X5? I know there are always debates and arguments that doing oil changes it btwn intervals is not needed since BMW uses synthetic oil so its just a waste of money but wanted feedback from current owners.[/quote]

You do it on your 330, so do it on your E70, if you choose to...

You answered your own question; you must have needed another
couple pages of opins. ...