Gas stations are well integrated into our daily lives as Americans. Except for residents of NJ, where you don't have to pump your own, a gas station can be intimidating with its cryptic displays and a ...

The higher the fuel’s octane rating, the less likely it is to prematurely ignite and cause engine knocking. phive2015/Adobe Stock We see the numbers every day at the local gas station, with gas sold ...

Octane ratings refer to the stability of fuel, and dictate at which pressures the fuel will spontaneously combust. Engine knocking can happen when the octane rating is too low, resulting in pinging ...

Costco’s premium gas, available at locations nationwide, has sparked a debate among drivers about its exact octane rating. Is it 91 or 93? And does this difference have any significant impact on their ...

87 octane gasoline, often called "regular" gas, is one of the most commonly used fuels in the United States. But what gives it that 87 rating is a word you've probably heard a time or two: Ethanol.

The answer is yes: You can mix 87 and 91 octane gasoline without blowing your engine to hell. With that out of the way, let's discuss what mixing different octane fuels does to your engine in terms of ...