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 ...

The price difference during a fill-up between regular and premium gas can be eye-opening. As of this writing, the U.S. Energy Information Administration reports that the average price for a gallon of ...

It's common knowledge that buying an ex-rental car can be a path to scoring a great deal on your next vehicle. That said, consider that rental cars frequently have more blemishes than normal, such as ...

Octane fights knock; it doesn’t add power to cars designed for regular. Follow the fuel-door label and pick regular pumps—the detergent is the real upgrade Premium Gas Isn’t Better. It’s Octane vs.