Unveiling the Octane Ratings - from knocks to burns, demystify the numbers on the pump for optimal car performance. Get ...

We may receive a commission on purchases made from links. Most gas stations have three options that you can put in your vehicle: regular, mid-grade (plus), and premium. These labels are also often ...

Given the whole "driving on the other side of the road" thing, it's easy to assume driving in the United States and Europe are two very different things. Same for when you pull up to the pump in one ...

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 octane of gasoline you put in your car is a key ingredient in the combustion process—and it appears that many drivers in New York City haven't been getting the quality of gas they paid for, ...

If you're a new driver, you may be confused the first time you pull up to the gas station. Most pumps offer a selection of fuel types labeled with a number. Those numbers aren't the price but rather ...

DENVER — Unless you have a turbocharged engine, regular 85 octane fuel may be the most expensive gas purchase you need. But for more miles per gallon, 87 octane may be the better buy than 91 octane ...