alt Hacker NewsEthanol free fuel in an engine designed for ethanol blend can result in incomplete combustion, leaving deposits in fuel injectors and valves. The car companies don’t care about this for the purposes of determining gas mileage.
Californians I think still remember the smog of the 90s in LA that kicked us to make our air pollution standards the highest in the nation. Going away from that I think sounds more like a nightmare than a dream for most Californians.
Sorry but this is complete horseshit. Ethanol is corrosive to engine and fuel system components. It is also hygroscopic and will suck water in which is bad news for your fuel system. The less the better. There is a reason modern cars will tolerate up to 15%. With modern DI engines you are getting buildup no matter what and it is completely unrelated to the presence of ethanol in the fuel. Ask any BMW owner and the fuckin' spa treatments they need to take their engines to.
Flex-fuel vehicles run on E85 are required to run a tank of regular gas every few months per the manufacturer. Which is literally the opposite of what you are suggesting.