When 82UL avgas was “introduced” some 15+ years back (I never have seen it for sale) everyone that already had an autofuel STC was automatically approved to use it. EAA and Peterson sent out new fuel tank stickers to everyone that had their STCs. I have one plane with the EAA STC, and another with the Peterson.
Will this be the same for this fuel, or will those of us that have an autofuel STC have to purchase this new STC to use it? Then if Swift Fuel becomes more widely available, will you have to have that STC also??? I can see the tops of my wings covered with stickers…