Re: increasing the octane of my gasoline with ethanol


"shakiro" <shakiro@xxxxxxxxxx> wrote in message
news:11hbteuhuo57u3f@xxxxxxxxxxxxxxxxxxxxx
> On Wed, 31 Aug 2005 18:04:55 +0000, HLS wrote:
>
> > You could do it by trial and error, starting with a simple normalization
> > formula:
> >
> > Ethanol has octane ratings of about 129 (RON) : 102 (MON)
> >
> > x(129) + (100-x) (95) = 100(98)
> > When you solve for x, you get about 8.8 % ethanol needed.
>
> Yes, that's what I mean, thanks, so the octanes add up linearly.

Maybe not linearly, but close enough for first approximations.


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