I have been a staunch supporter of Amsoil for awhile now. I noticed lately that my clutch just doesn't feel right, almost like it is not engaging fully and it is slipping a little. So today I went to wally world and bought the Mobil 1 10w40 synthetic M4T cycle oil. Going to give that a shot and see how it does.
This argument is as old as the world trust me. A good synthetic oil, in my opinion formulated for a cycle, will be just fine.