Opti 2 is formulated and designed to be universally mixed at 100:1, regardless of what engine you're putting it in or the manufacturers recommendation. It is designed to exceed all industry standards and manufacturers warranties. That's why it can be mixed at 100:1 universally.
I apologize as that had such a ring of endorsement I was confused and took you for somebody who was advocating this products use. I would have thought you would care, as you have joined a forum with a group of like minded people generally trying to improve the lot of these Chinese engines. Are you suggesting you will say anything without regard for its accuracy or safety using a don't care attitude as defense of your ignorance?