Not all premium gas is created equal. Find out where Costco's octane rating lands and what that means for your car's ...

Our gas is listed in a range of octane offerings, but American automakers are looking to simply that. By doing so, they say, they'll clean up the air, boost fuel economy, and save us money at the pump ...

DETROIT -- Automakers and oil companies are quietly developing a new generation of fuels and engines to run more efficiently on them, generating more power from less gasoline to reduce emissions and ...

Automakers and oil companies are developing new engines and fuels Fuel cost is a key concern Automakers and oil companies are quietly developing a new generation of fuels and engines to run more ...

While our automobiles have experienced remarkable changes over the past several decades, the fuels we put in them have not. Specifically, the octane rating of regular gasoline today is the same as it ...

Customers who bought premium gasoline from Los Angeles-area Mobil stations in recent months may have gotten a little less oomph in their tanks than usual. Government inspectors are investigating ...

We’ve been burning gasoline for well over a hundred years now, but some misconceptions about fuel—especially when it comes to octane—are so ingrained in the popular consciousness that even those of us ...

Raising the octane in gasoline -- seen as a way to improve fuel economy and reduce emissions in today’s high-tech turbocharged, direct-injected engines -- looks like it will get some attention from ...