> there are no approved alternatives yet
Not exactly, you can get STC approval to use mogas in most piston engines, it's just a hassle and expense so most people don't do it: https://www.autofuelstc.com/
Not exactly, you can get STC approval to use mogas in most piston engines, it's just a hassle and expense so most people don't do it: https://www.autofuelstc.com/