I'm writing this on the final day of April, 2026, and if you're a person who has to put fuel in any kind of vehicle right now, chances are excellent you already know that fuel prices are bonkers thanks to the current war-induced fuel crisis. This is a problem that is being felt everywhere around the globe, to varying degrees.
Here in the US, because we have federal regulations governing the amount of ethanol that can and/or should be mixed in with our gasoline, that's what's supposed to be what's coming out of the pump when you fuel up. Depending on the gas station you go to, you can of course find higher mixtures of ethanol available.
However, federal regulations state that they must be clearly labeled to prevent accidentally putting the wrong fuel in your vehicle. For example, while newer cars can handle E15 (and maybe save you a little money at the same time), older cars can't. You can seriously damage vehicles that aren't built to handle higher ethanol content, which will probably cost way more money in repairs than you might save on fuel.