I will say this much about StarTron, I tried some in my car one time when I filled up, and it definitely seemed to run smoother, especially when first started up on a cold engine. Usually I can tell where the engine computer increases the idle until the car has warmed up, but that seemed to lessen with the StarTron.
I also used some in the last batch of 2 cycle gas I mixed, and my chainsaw seems to start a lot easier. I've noticed the smaller the engine, the more it seems to hate ethanol. Previously it was all I could do to keep my chainsaw from shutting off at idle.
Ethanol belongs in bottles, not gas tanks!