The difference between 87- and 89-octane is subtle. Midgrade gas came around at a time when it was needed, but it has since ...

What's the difference between premium and regular fuel? What does that octane rating number represent? This video explains ...

What is octane rating? What is cetane number? Gas & diesel ratings. What is octane rating? What is cetane rating? When purchasing gasoline or diesel fuel you’ve likely noticed the selection of numbers ...

Few drivers may know what octane refers to and how it might affect their vehicles. Metro News Service photo Few drivers may know what octane refers to and how it might affect their vehicles. Metro ...

American gas usually ranges from the high 80s to the mid 90s in octane rating, and yet gas in Europe can be 4-6 octane higher ...