Regular gasoline is a type of fuel commonly used in vehicles with internal combustion engines. It typically has an octane rating of 87, which helps prevent engine knocking and ensures smooth operation. Regular gasoline is widely available at gas stations and is often the most affordable option for consumers. This fuel is derived from crude oil through a refining process that separates various hydrocarbons. Regular gasoline contains additives that improve performance and reduce emissions. It is important for drivers to choose the appropriate fuel type for their vehicles, as specified by the manufacturer, to maintain optimal engine performance and efficiency.