High-Octane Hijinks: Is Premium Fuel Better Than Regular?

[AutoGuide.com]

When it’s time to top-off the tank, drivers are confronted with a dizzying variety of choices at the pump. There’s premium gasoline, mid-grade, regular and – depending on where you live – some even offer ultra-high octane, with a rating of 94 or above.

Octane numbers, ethanol content and diesel get thrown in the mix, while TV commercials shout about special cleaning additives and better fuel economy. What’s a motorist to do? Is premium fuel worth the extra cost over regular? It’s more expensive so it must be better, right?

For the complete story on regular vs. premium fuel visit AutoGuide.com

[SuperCrutyPS]

Articles on Octane basically state that you should use the Octane you Owner's Manual states. Burning Premium (91) in a car that the manufacturer says should run 87, doesn't help it run better.

[Turbostang500]

^^ and if it does run better, you have a problem that is being hidden with higher octane fuel.