Somehow people always translate higher octane equals more power.
That is not true.
Octane is simply a measurement that indicates how quickly the petrol will ignite. Higher octane ignites slower than lower octane. When vaporized fuel is put under pressure with ambient heat it will eventually ignite. That is how a diesel engine works. So higher compression engines need higher octane fuel or they will pre-ignite.
Now it is often the case that higher compression engines are also higher performing, or have more power. But that is because of the engine, not the octane of the fuel. If you put high octane fuel into a YUGO, you still only have a yugo.
