The "imminent" demise of leaded aniation fuel has been discussed, debated, and planned for more than 30 years; current efforts focus on ensuring that we will continue to have 100LL for the near future, while also implementing a program to transition the industry to an unleaded fuel with the least impact on the existing fleet. Our current leaded fuel eventually will go away, and when it does go, the goal is to have it replaced by other high-octane fuels capable of safely powering high-compression, turbocharged piston aircraft engines.
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