I do use the nonspiked stuff in my gasoline generators and lawn equipment to keep it from gumming up the works. But when on the road in the car, I use the food-for-fuel stuff because it's everywhere and it's cheaper due to government mandates and tax dollar subsidies. Maybe one day reason will prevail and the government manipulators will stop tilting the playing board to satisfy the interest groups and their lobbyists. I know, Pollyanna just musing pipe dreams here.
Why these same people will then complain about how their car is terrible on gas is a mystery to me.
Hyundai & Kia drivers get free checks because the hard, low mpg drivers & whiners complained about poor mpg. Meanwhile, our 2008 Accent, 2013 Elantra & 2016 Elantra have highs of 45+mpg, using 100% ethanol-free gasoline(E0), mostly avoiding stop & go traffic, & easy driving. Matter of fact, the 2013 auto Elantra averaged 39mpg with E0.