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Date: Wed, 13 Aug 2008 16:53:01 -0500
From: Charlie England <ceengland@bellsouth.net>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] MoGas
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John Downing wrote:
> Current fresh gasoline w/stabill added will take on a peculiar odor 
> and color in 6 months time and doesn't start well.  So one has to 
> figure out how to deal with this, so you don't have old gas sitting 
> around like Charlie says.  Michigan now has Ethanol in 87, today is 
> the first I found it in no lead, the governor ordered that all 
> gasoline be included, so our STC for auto fuel is no longer valid.  
> That just raised the price of flying another buck a gallon.  JohnD

There are some corn belt RV-x's that have been flying on pure ethanol 
for about a decade. If we make sure that the fuel system doesn't have 
anything that ethanol will attack & aren't flying high/cold enough to 
cause the ethanol to separate out, I don't see any compelling reason to 
quit using mogas in a homebuilt. We will just need to plan for the 
poorer fuel consumption numbers.

Corn's probably the worst source for the ethanol, but the ethanol itself 
shouldn't be a show stopper.

Charlie