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 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 ...

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 ...

It's common to see "requires 91 octane gasoline for best performance" on the fuel door of sports or luxury cars. So, we scratch our heads when we see the same premium recommendation on a family car, ...

This is an archived article and the information in the article may be outdated.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 pumps in some Western ...

The EPA recently announced plans to lower proposed fuel economy standards but automakers are still trying to eke out as much mileage as they can with current technology. As part of this initiative, ...

Q: Can you mix 91, 95 or 98 petrol together? A: Yes, you can, as long as you always use fuel with a higher RON (Research Octane Number, also known as octane rating or octane level, is an indicator of ...

Q: I drive a 2001 Lexus LS430 with 58,567 miles. The car manual says I should use gasoline with an octane of 96 or higher. I cannot find an octane that high. Any suggestions? — J.S., Fort Lauderdale, ...