Fit_Lawfulness_3147

Fit_Lawfulness_3147 t1_jduslek wrote

As previously commented upon, lead is an anti knock additive. It increases the octane number. The higher the engine’s compression ratio, the higher the required octane number. The higher the compression ratio the more power the the engine can produce. SO… small aircraft need high octane fuel in order to keep the engine(s) small (light).

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