Here's one to check out. Mark Joyner, Author of Simpleology, has found a inventor that figured out a way to run a car on 60% water and the rest waste oil of any sort.
Very interesting when you're paying over $3.00 per gallon for gas (and rising). We could run all of the cars in Arizona on water the the french fry grease the local McDonalds throws out daily.
Don't believe it. Check it out for yourself