In Iowa the only gas I use is 92 with no alcohol. It's at every station. Guess I'm lucky.
Thanks for asking this question. It's been on my mind and you went ahead and got me some answers. What was the octane rating on the gas you bought? From what I read here, I should go 89+.Recently, a gasoline station about a mile from my house started selling ethanol-free gasoline. .......
Perhaps none. In fact, regular gasoline may have a higher energy content per unit weight than premium.