If the gasahol burns slower, then it would have a hight octane. Considering
that the mix can go as high as 25% (someone on the list said that) I would
expect the octane of the fuel to vary somewhat...
On Wed, 14 Jun 2000, mup1dm wrote:
> When pondering the question of "Gasahol" bear in mind that the
> petrol at the pump, whether in Europe or North America, is
> composed of the refined petroleum product we think of as
> "gasoline" PLUS a whole lot of other things that give the
> features and characteristics required by the modern market.
> "Straight" gasoline is much TOO volatile for todays cars,
> so other componds are added to control the temperature of
> ignition, temperature of vapourisation, burn rate, and any
> number of other parameters as dictated by local requirements.
>
> Market price ethanol may be US $2/Gallon, but as an octane
> booster/oxygenator/fuel-system-cleaner/antifreeze that
> still makes it about half as costly as most of the xxx-ane's
> and xxx-ene's that would otherwise be used, so it is in fact
> quite likely that whatever refinery supplies your local
> pump is including either wood or grain alcohol in the mix,
> even when laws don't require it.
>
> I too used to seek out Gasahol for a particular car that
> would ping on (US) 93 octane fuel but was fine with 89
> octane gasahol. Go figure...
>
> Douglas McKinnie
>
>
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