Any time the government mandates changes in the formulation of fuel that is not scientifically supported it means that somebody is going to get rich (the corn producing farmers and their congresscritters like the new SD-RINO Kristi Noeme) and somebody is going to get screwed (the American consumers of that fuel).
The oil companies don’t have much to do with it. They will produce the fuel and the governement will mandate its adulteration into something that is harmful. Do you remember MTBE?
This is all due to Congressional mandate for a set amount of ethanol to be consumed.
The only way the idiotic mandate can be met is to jack up the ethanol percentage in the gasoline.
The first step would be to dump these idiotic mandates and stop subsidizing ethanol to the tune of billions of dollars for a motor fuel or additive that has been proven to destroy engines, increase ozone pollution, and to say nothing of the ridiculous amount of energy and crop land it takes to produce feedstock (corn) for the process. It’s also less efficient than straight gasoline thereby requiring more to be consumed to do the same amount of work.