The main reason I asked this question was because I am putting I away for the winter and I know the ethanol is bad for storage and just bad period for small engines. I use premium because I want the best performance I can get and the manual recommends it like most recreational vehicles. when I found this station 10miles away that sells ethanol free gas I'm willing to drive and pay for it for my scooter. it was more expensive, I think regular was $3.20 or so and this stuff is about $4.25+ but my scoot get 85mpg so id rather put the good stuff in it. and im not sure who said it but it makes no sense that regular could be better.