What octane of fuel?

Octane rating measures a fuel's ability to resist engine knocking or pinging during combustion. Higher octane fuels, such as premium gasoline, can withstand more compression before igniting, making them suitable for high-performance engines. Regular gasoline typically has an octane rating of 87, while premium can range from 91 to 94. Choosing the right octane level is essential for optimal engine performance and efficiency.