thank you all for the reply the reason i ask about Mobile 1 (0W-40) this is wot i use in my all Mercedes cars the engine is so clean from in side so i think it should do the same to the bike
so the Mobile 1 10w-40 should be good ?????
some of it is temperature, some of it is just personal preference...I use mobil 1 15-50...
After all the "what kinda oil" threads that have been here, I think as long as you use a good synthetic, and change it regularly, it doesnt really matter what weight oil you use...unless you want something for a specific application.