I've been running full synthetic Mobil 1 10w40 in my 13 R1 since 600 miles, I'm @ 7k now doing changes every 1000 miles (Oil and filter). I was talking with my friend who has a newer R6 and USED to use Mobil 1 until he noticed some issues of which sounded all too familiar... cold take off slippage, and when very cold (for California) difficult start up (couple tries, almost sounds like a dead battery initially). Has anyone else had these issues? He recommended V300 10w40 from Motul, anyone have any input on that or any other alternatives?