“Operationally, ‘bio-diesel’ performs very similar to low sulfur diesel in terms of power, torque, and fuel economy without major modification of engines or infrastructure.”
While ethanol requires different engines, as well as hydrogen, soy diesel can be used with existing engines and fuel injection equipment, but with considerably less pollution emissions. It’s easily biodegradable, nontoxic, and essentially free of sulfur and aromatics. “Unlike other gases that emit methane, nitrous oxide, and carbon monoxide, which tend to be classified as greenhouse gases and can be hazardous to your health”. (That part hasn’t been entirely proven yet)
Like mentioned above biodiesel can be used with existing car/truck parts. Also it can be easily be distributed using current infrastructure. So while it would be easy to change over, biodiesel tends to be more expensive. However it can be easily made at home too. It’s a fuel that be made simply and easily with little expense to consumers. This differential may diminish due to economies of scale, the rising cost of petroleum, and government subsidization favoring the use of biodiesel.
I think that if the government wanted to find a more efficient and easy way to try to limit the environmental impact of gasoline, that this would be a simplify way for right now. It may not be something that will work forever, but for right now it may be something that can be a potential idea. I like that not much would have to be changed in order to make it fully implemented. Plus the ingredients are something that have excess “inventory”, so we wouldn’t totally be off the basis for requiring more production. I’m not entirely sure how you would find the efficient amount of emissions and how the efficient amount of biodiesel should be found.