Bensiinissä

Bensiini is a Finnish word that translates to "gasoline" or "petrol" in English. It refers to a fuel derived from petroleum, primarily used in internal combustion engines. This fuel is a complex mixture of hydrocarbons, typically containing between four and twelve carbon atoms per molecule. Its specific composition can vary depending on the refining process and intended application.

The primary use of gasoline is as fuel for spark-ignited internal combustion engines, commonly found in automobiles, motorcycles, and light aircraft. The combustion process in these engines involves igniting a mixture of gasoline vapor and air with a spark plug, causing a rapid expansion of gases that drives the engine's pistons.

Gasoline is classified by its octane rating, a measure of its resistance to knocking or pinging, which is premature ignition in an engine cylinder. Higher octane ratings indicate greater resistance to knocking. Additives are often included in gasoline to improve its performance, such as detergents to clean engine parts, anti-corrosion agents, and substances to prevent ice formation in fuel lines.

The production of gasoline is a significant part of the petroleum refining industry. Crude oil is processed through fractional distillation, separating it into various components based on their boiling points, with gasoline being one of the lighter fractions. Environmental regulations and concerns about emissions have led to the development of reformulated gasolines with reduced levels of certain harmful components like sulfur and volatile organic compounds.