I think his question was in regard to Echo's new requirement to use 89
octane fuel (if you ask them they will say 89 minimum - higher is OK), but
their manuals now just say 89 octane.
It seems odd for a 2-cycle garden implement, especially since they're not
all that high in compression and should be intended for less-than-optimal
And the issue with my Echo engine was a scored cylinder - the piston crown
was just fine rather than eaten up as you'd expect from a typical low octane
>> What's with the gas thing? Is it higher or lower octane that is
> Using fuel with too low an octane can lead to serious engine damage.
> Octane too high just wastes money.
> There was a time when "premium" also meant better additive packages, but I
> don't believe that is true any more.
> -- Randall
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