What do small gasoline engines generally use?

Small gasoline engines generally use a mixture of gasoline and oil for lubrication, which helps reduce friction and wear on engine components. These engines typically operate on a two-stroke or four-stroke cycle, with two-stroke engines often requiring a specific oil-to-gas ratio. Additionally, they rely on a spark plug for ignition and a carburetor or fuel injection system to mix fuel and air for combustion. Common applications include lawn mowers, chainsaws, and other outdoor power equipment.