What you want is:
Regardless of Brand, Synthetic or Petroleum, Always use a Motorcycle Specific oil with a JASO MA Rating, better yet, MA 2, but never MB.
If anyone tells you that there is no difference between an auto/diesel oil and a Motorcyle oil, they are mistaken.
Look at the G-2156 link in our Sig and pick one of the top 3 finishers.
Bob