Do alternative fuels really work?

Yes alternative fuels work great. For example bio-diesel is mixing diesel fuel with cooking oil. Works great when you buy the converter kit, but is costly at the current time due to low manufacturing. If you do not get cooking oil free from say a McDonalds or someplace like that it goes bout $8.00 per gallon. Check back in a few years and this might be cheaper than gas the way prices are going now.