Oh, you can drop as much oil as you want into the tank. The worst part would be the smoking out of the tail pipes. That's the nice thing about these engines, they are flexible with what fuels you can run.
I tend to run a blend of extras through my tanks, let's just say it's a proprietary blend of mine and I don't normally divulge because it not only keeps the system clean but also seems to be helping with my power and mpg. But I do always add some synthetic 2 cycle in every tank, and I like to add some dino stock ATF. ATF is a wonderful fluid to mix and burn. Even in cars that haven't been run in ages, that's how I learned about the good of ATF in a fuel tank. And I was 15 so this was AGES ago!