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What are some potential lead-free alternatives to 100LL? Thousands of pistons still use leaded fuel and spray carcinogenic lead additives out of their exhaust, potentially over populated areas.
There are new jet-A burning engine designs that can potentially be swapped but they're fucking expensive, and most pilots are lucky to afford a 40 year old cherokee that may or may not have been used to smuggle crack over the boarder.
