How about the thing that was on tonday tonight this evening? Some lawnmower mechanic modified their car to run on a water/petrol blend. Seperates the Hydrogen out from the water and mixes it in the inlet manifold with the fuel/air mixture. The saving touted was 75% fuel at the cost of a few litres of water per week. An application for aviation, particularly piston driven GA aircraft?
That idea has been around for some time and the savings are real, but it burns valves out prematurely.
Much better to collect the fairy sh$t from the bottom of the garden and grind it real fine in a pestle and mortar and sprinkle it once a week over the air cleaner element. The savings aren't quite as good around 65% but the finer you grind it the better the results.
With the growing scarcity of fresh water fairy sh$t is much cheaper and readily available.
Don't make the common mistake of using gnome do do though, much lower octane rating, and leads to detonation.
