I cannot imagine that this will be embraced by the environmentalist/PETA community. If they throw a fit about Ben & Jerry's using cow's milk (what a tragedy, a cow is relieved of its milk and is still alive after the fact), I can't image they would be happy with the use of grease from a hog. If it works and people want to spend extra money on it, good for them, but I'm sticking to traditional oil.

MrKrisSullivan, I believe they are referring to oil as in the stuff you pour in and replace at intervals, not another biodiesel option. Plus who would want to pay $24-28 dollars a gallon?