AFAIK it has nothing to do with mixture, just timing. It's not like the
total energy contained in premium fuel is greater, it just has better
anti-knock qualities (which I think has to do with flame spread, but I may
be talking through my hat).
on 4/10/03 4:43 PM, James Nazarian at jhn3@uakron.edu wrote:
> List, I'm looking for a little experience to weigh in on something here.
> I'm curious, given a particular car and driving conditions, will higher
> octane gas allow you to lean out the mixture? or does it just allow you to
> advance timing? I'm not looking for any particular advice here, just
> curious about how octane rating and mixture interact.
>
> James Nazarian
> 71 MGB Tourer
> 71 MGBGT V8
> 85 Dodge Ram
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'66 MGB GHN3L76149
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