If you spend a lot of time driving in various areas of the country, you might notice that some gas stations carry 91 octane ...

High-octane fuels are critical for the proper operation of some performance engines due to how they're engineered to deliver ...

Labeling different gases as “regular” and “premium” is a bit misleading, as many cars only require regular gas and should only run on regular gas. Premium gasoline is not necessarily a luxury product ...

Gas prices are on everyone's mind, but so is performance. Does a gas-powered lawn mower care as much as a sports car does ...

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 ...

We see the numbers every day at the local gas station, with gas sold based on octane ratings. Most people go to the lower number—usually 87—because it’s the cheapest, but what do the ratings mean, ...

Like most things automotive, it depends. No two engines have exactly the same octane requirement, due to differing amounts of combustion chamber deposits and overall engine condition. Bore diameter ...