Learn when premium fuel is actually required, what the different grades mean, and how to avoid paying too much.

Every time you gas up, you're faced with the decision. Do you press the "regular" or "premium" button at the pump? Are you ruining your car when you opt to save a few bucks, or are you pouring money ...

Using premium gasoline with a higher octane rating can improve how certain designs of motor vehicle engines perform. But does that mean you should consider using it with other motors at your house, ...

Fuel comes in different grades based on octane level at gas stations. Only some performance engines require Premium fuel for the best power output, fuel efficiency, and engine function. Are you ...

When you go to a gas station, you are presented with several types of fuel, each labeled according to an octane number. While most cars can do with regular gas (generally 87 octane), it is often ...

We've all seen octane ratings at the fuel pump, and based on the numbers, it's easy to think the higher number is better. From lowest to highest, the types of gasoline are regular, mid-grade, and ...

You've probably been there. Standing in front of the pump, eyes darting between regular, mid-grade, and premium. Premium just sounds better. It's more expensive, sure, but you feel premium means ...

With the dizzying array of options at some gas pumps, it can be hard to decide if you should use premium gas in your car or take the less expensive option. Owners of vehicles equipped with modern Hemi ...