it is in no way a scam. it is 100 plus octane race gas at the local gas station for less than 93 piss water petrol.
the 6.2 engines love it, it also cleans the top of pistons. now gm didn't spend the money to install a physical sensor on these trucks and trys to do the math off the reg o2 sensors which is mostly a failure. but that's not e85's fault.
just because you don't own a car that can take full advantage of e85, I hate seeing people shit on it. anyone with boost and a flex fuel sensor it's a god send.now if we would. remove the tariff on it and just sell it at the price Brazil sells it to us we would be set.