California gas has a different formulation than gas in the other 49 states. In theory, it's because environment. In practice, it's a way to keep gas prices high and get poor people to buy expensive electric cars. I wonder how that's working out for them? I was born and raised in California and I can't believe what a shitshow it has become. Mind boggling. And now Newsome is making Presidential noises. Isn't that nice?IDK. But even 91 should be more expensive than 93 in other states