I was talking to my father that evening about this and he was
reminded of racing motorcycles back in the 1940/50s, these were run on
a mixture of wood alcohol and water, no mention of catalysts.
As my mower ran without the addition of a catylist, I suspect that
the water rather than fracturing into H2 & O2 was simply expanding to
steam by consuming waste heat in the cylinder thus my engine was
running partially as a steam engine. I suspect that this is a more
effective use of petrol as energy that is normally wasted as heat is
converted into useful mechanical energy.
The emulsion described above is unstable, separation in the jar was
noticable within a minute, the fuel tank on my mower is attached to
the body of the engine and thus is subjected to sufficient vibration
to maintain the emulsion while the mower is running.
It may not be free, but it should burn less fuel and put less heat
into the environment.
Peter
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