Just off the cuff, but as I recall, Germany used methanol injection to boost horsepower of fighter engines in World War II. They did this as the synthetic fuels they were using were very low octane (roughly 80). A major drawback was that the methanol was very hard on the engine and would destroy it in only a couple of hours of operation. This was acceptable in a combat situation, but… as a long term fuel, would not methanol cause major problems with engine reliability and life… I know I now expect a car I buy to last 125,000 to 150,000 miles.
