Next time you're at the store, check the price of a gallon of peanut oil. Most of the reason why we're hooked on petrofuels is because historically they've been a very cheap source of energy. Alternatives are out there, but they're not free.Why can't we just use the alternative fuels out there? For how smart our society is I would think they would have implemented something in by now. After all, the diesel engine was originally powered by peanut oil.