Interestingly one of the 3 California sources is a Shell ... you might want to check with your closest Shell dealer to see what their pumps say and of course test the gas yourself ... up here, all Shell stations offer V-Power (91 octane) premium with zero ethanol ... it is possible that more of your Shell stations do as well but just don't appear on the pure-gas website.
Shell's 87 has 10%, 89 has 5% and 91 has 0% - at least here in Ontario Canada.
Jeff

From: "Al Gietzen" <ALVentures@cox.net>
Subject: RE: [FlyRotary] Re: FW: 100LL in California
Date: Thu, 12 May 2011 07:29:13 -0800
To: "'Rotary motors in aircraft'" <flyrotary@lancaironline.net>

The pure-gas.org lists only 3 sources in all of California.  I've checked the local marinas around San Diego, and the response I get is "all fuel in CA contains 10 % ethanol".

I've tested the fuel I've been buying at the local Chevron stations, and it has 10% ethanol. I've been using that fuel almost exclusively for 5 years in my Velocity (EZpoxy tanks), and am not aware of any problems sp far.  It does cause me some anxiety, however; so I'm considering more extensive use of 100LL.

Seems ironic - one good reason for using mogas is eliminating the lead pollution; which the regulators are trying to achieve; and then they regulate the requirement for ethanol in the fuel which makes that a bad choice as well.  Typical bureaucratic lose-lose situation.

Al



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