I was at Benny's the other day and ran across these little pouches of Oregon brand 2 stroke oil. Says they are good for all mix ratios. I'm thinking about giving these a try. I looked it up and it may be a relabeled Opti-2. What do you guys think? They are only $1.39 each at Bennys and could use the same oil for my chainsaws, weedeater, etc.