Used primarily as a reference standard in determining fuel quality for gasoline-powered engines. Its high resistance to knocking makes it ideal for calibrating octane ratings in fuel blends. Found in research and development of internal combustion engines to evaluate performance and efficiency. Also used in laboratories as a solvent for non-polar compounds and in analytical chemistry for calibration in gas chromatography. Plays a role in the formulation of motor fuels to improve combustion stability and engine longevity.