Premium gas costs more at the pump, but does it actually make your car run better? The answer comes down to octane, engine design, and what your vehicle really needs. Most gas stations usually offer several gasoline options, with premium fuel carrying a higher price than regular.

 

It's tempting to assume that spending more means better performance, improved fuel economy, or a cleaner engine. But the difference between regular and premium gasoline is not quite what many drivers think.