Ahh . . .  I knew there was some explanation like that, but couldn't
remember the specifics.  Thanks Greg!

Marc Perdue

Greg Potts wrote:

> Hi Mark,
>
> Excellent replies, and right on the money pretty much everywhere.
>
> Except...
>
> According to my reading at http://www.permaculture.com/alcohol/FAQ.htm
> , ethanol burns cooler ONLY if you adjust the mixture and timing
> accordingly. when if you pour oxygen-rich ethanol into an engine
> optimized for gasoline, you will find it is running too lean. Lean
> running = burned valves and/or dropped seats. You do NOT want to add
> any extra heat to an aircooled engine. Watercooled engines are much
> more tolerant of this extra heat, but with modern fuels many people are
> finding that aircooled engines are already producing as much heat as
> they can handle. More is NOT better.
>
>