I agree that it's good that other forms of energy are being researched but as Fire said, it will be sometime before there's in engine out that can handle ethanol and the cost of it will be much more than today's gas per gallon. In the meantime, I went ahead and ordered C3 from Candlewic, even with the shipping it was less than driving to pick it up locally at the jar store. I might as well save the gas in my car. As for marking up the candles, consumers will decide when they are too expensive and will opt for other less expensive scent options....