For instance only use premium fuel for small engines , I.e. Snow blowers, lawn equipment, golf carts ect, I recommend premium with no ethonal , as it is bad for small engines and never leave that fuel stored in the tank over the winter or summer, best to drain it rather then using fuel stableizer. Also they boost octane with ethonal , it is safe to use as long as it's total octane meets or exceeds the requirements of your vehicle. However I am giving you my personal opinion on what works best in my vehicle or engines from my own experience. Think of this as well, using fuel with no ethonal will give you better fuel economy as well as better performance. You can google and read lots about the differences.
Here is a link I just pulled up
https://www.bellperformance.com/blog...l-and-gasoline