Welcome! The search function should provide LOTS of opinions about oil. Mostly, using a motorcycle specific engine oil, one that does NOT have friction modifiers will suffice. (Car) oil has the tendency to make the clutch slip. I happen to use m/c specific Amsoil full synthetic so I don't have to worry about hot weather or hard riding conditions or my clutch slipping. The change intervals are longer as well. A K&N filter will also make changing the filter a bit easier. Good luck!