Silly me, I did a search after I submitted the question and found plenty of info on this subject. However, it seems that there are many differing views so I'm still not sure. Here in Australia we have a product called Methylated Spirits (sold chilled by some unscrupulous storeowners) which contains 96% ethanol, someother substance to stop the hardups from drinking it ( but they still do, mixed with orange juice) and a little water. The instuctions state that it can be used as a fuel in burners and lamps, nothing about internal combustion use. Would a mix of 77% of this product, 20% castor oil and 3% actetone power our engines without damage? On another note, if a car has a little water in the fuel tank pour in a bottle of this stuff as it readily mixes with the water and will burn it off. Regards, John.