Re: 100:1 Mix
Shan (mapbike) has multiple engines with over 1000 miles on them with zero issues. He also lives in the 'heatbelt of Texas' with extreme temps during the summer.....that kinda of use with no problems seems like "hard physical evidence or test data" to me.
Now I don't run Opti-2. I use Echo oil at a 50:1 ratio ---- also with zero issues. I'm not taking sides on this issue, but Shan's facts do support his case.
Best of luck to everyone in whatever you decide to run!
You're never lost until you run outa gas.