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 ...

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.

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 ...

We have to separate the chemical "octane" from a fuel's "octane rating" since they can be two different things. Think about it this way. If you learned your shapes in kindergarten, you should easily ...

Gasoline is a mystery to most hot rodders. For the most part, we just fill up the tank and forget about the fuel. The most difficult question is whether to step up from 89 to 92 octane. As you might ...

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 ...

Want to get into a heated argument? Try explaining to the public why unleaded is a nickel per gallon higher than regular or how regular and premium have changed in the last few years. Then clarify how ...