what is regular gas

Regular gas is a type of gasoline that is commonly used for vehicles and is the most common type of gas sold at gas stations. It is also known as unleaded gas, which means it does not contain any lead compounds, making it better for the environment and less hazardous to health. Regular gas has an octane rating of 87, which refers to its ability to deal with improper fuel combustion in an engine. It burns faster and is suitable for low compression engines or low-performance cars that do not require a lot of power. On the other hand, premium gas is generally considered any type of gasoline with an octane level of 91 or greater, with 91 octane and 93 octane being the most common versions of premium gasoline available at gas stations in the United States. The main difference between regular and premium gas is the octane rating, which affects the fuels ability to resist knocking or pinging during combustion.