Re: 91 octane gas

[David Rowney <daver@uclink4.berkeley.edu>]

Ethanol increases octane, but lowers the energy content of the gasoline blend.

See: http://www.chevron.com/prodserv/fuels/bulletin/oxy%2Dfuel/enrgycon.shtml

Chevron is going to 91 octane also in California.

Dave

At 09:17 PM 7/29/2001 -0400, you wrote:
>I only noticed 91 at 76 stations for a few weeks now. Ever since I have been
>going only to Chevron.
>
>I thought I heard somewhere that because they are adding more ethanol, it
>lowers the  octane rating. Someone care to comment?
>
>Elton
>SM #68