What fuel do most light piston aircraft burn?

Aviation gasoline containing tetraethyllead.

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  3. Aviation gasoline containing tetraethyllead ✔

Why: Most light piston aircraft burn avgas, which contains tetraethyllead; some engines can use unleaded mogas.

Huh, didn't know that: Most light piston aircraft burn avgas, which contains tetraethyllead; some engines can use unleaded mogas.

The dad joke
Avgas is a lead-ing choice.
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References

Answer: Aviation gasoline containing tetraethyllead. Most light piston aircraft burn avgas, which contains tetraethyllead; some engines can use unleaded mogas.

  1. Aviation en.wikipedia.org/wiki/Aviation
    Most light piston aircraft burn aviation gasoline (avgas), which contains tetraethyllead (TEL).
    Checked 2026-11-07.

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