they dont have to a high performance engine to require higher octane fuels. for instance, my generator is a cheap 3000watt from harbor frieght. High performance? I think not. manual states 91+ octane. As does my Toro snowblower, craftsman snowblower and lawnmower, all my cutoff and chainsaws (which now ONLY get SEF94). All which have been in the shop due to "stabilized" ethanol fuels at some point. Lets not forget ethanols ability to eat rubber compounds. The instance that it needs a 91+ octane does not mean that it's a performance engine. Nothing wrong with running a small engine dry and fogging. pour in the stabilizer treatment or run it for a few minutes, close the fuel valve, and run til its dead. You must be Eli.