Gasoline

Gasoline, a vital fuel for internal combustion engines, is primarily composed of hydrocarbons derived from crude oil. Its octane rating, a measure of its resistance to knocking, is crucial for engine performance. Higher octane ratings (like RON 91 and 95) are better suited for high-performance engines with higher compression ratios, while lower octane ratings (like RON 87) are sufficient for standard engines. The octane rating is determined by the fuel's molecular structure and refining processes. Refiners manipulate the hydrocarbon composition to achieve the desired octane rating. Additives like ethanol can also boost octane levels. Choosing the correct octane rating is vital for engine health and performance. Using a lower octane fuel than recommended can lead to knocking, damaging the engine. Conversely, using a higher octane fuel than necessary offers no significant performance benefits.