CORRECTION 87 and 93 octane. Videos were reversed.

[@RodrigoNascimentoMattos]

93 is more resistant to burn. thats why it makes more horse power.

[@moonliteX]

Higher octane fuel can be compressed more without auto-ignition (knocking)

[@TheMrDarius]

I believe they use a different ratio blend for the different octanes. The higher the octane, the higher the compression ratio in the engine. Keeps the engine from knocking. A lot of cars will run lower octane but the ECU will retard the timing a lot producing less power

[@xdgnr8499]

To prevent premature detonation (knock) thats why all forced😊 induction(turbo/supercharged) motors require premium.

[@TheMrDarius]

@@xdgnr8499 yeah I’m aware

[@misfit4816]

the only reason to run higher octane, or why manufacturers recommend it is because more often than not, they haven't optimized their engine design and are taking the cheap exit on their end. costs less to make an engine thats gonna knock/isnt perfect on lower octane