Re: what did you do to your motor bike today?
US2 and Interlube, makers of Opti2, are not the same company.
us2oil.com, two stroke oil for one oil-to-gas ratio, replaces all 2-cycle oils.
Opti2 & Opti4
I dare not compare the products as I have yet to myself nor do I plan to do so in the near future.
"It's a chinagirl. It's a sometimes fun little engine that often will break your heart. It's disposable.
Does not come with a fortune cookie."