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by NonNefarious 1386 days ago
It's about detonation; I don't think it's about the valves.
2 comments
bombcar 1386 days ago
The 100 octane is about detonation; the lead is about lubricant for the valves.
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NonNefarious 1383 days ago
Mmmm, not sure about that: https://generalaviationnews.com/2011/10/24/why-lead-reduces-...
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throwaway0a5e 1386 days ago
It's about the valves.

Plenty of 100+ octane unleaded fuels out there.

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