Costco’s premium gas, available at locations nationwide, has sparked a debate among drivers about its exact octane rating. Is ...

Before putting any additive in your vehicle, you should do research, and octane boosters are no different. Here are the pros ...

There's a lot to know about vehicle ownership, from maintenance intervals and tire choice to oil type and tire pressure, but too often, people gloss over the fuel they're putting into their vehicles, ...

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 know how to choose the right fuel at the gas pump? Here's a quick rundown of the different octane ratings. The post ...

If you've ever fueled up in Colorado, you might have noticed something unusual about the gas octane ratings at the pump – specifically, the availability of 85-octane gasoline. This lower octane fuel ...

When you pull up to an ordinary gas station, you’ll see multiple types of gasoline. The most common here in the U.S. are listed as “regular,” “plus,” and “premium.” To the casual observer, it might ...

With all the different engine and combustion theories being tested at the Engine Masters Challenge, it made us wonder about the fuel these powerplants were gulping down. For the 2015 event, we had ...

Settling may be fine for some things, but when it comes to your vehicle, especially when you put so much time, energy and money into it, why settle for something less than the best? If you demand the ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. DENVER (KDVR) — Gas prices are fluctuating ...