[Publius6961]

Everything I ever wanted to know about biodiesel, except...
The important stuff like...
How much does it cost?

Oils could be extracted using chemical solvents, enzymes, expeller presses, osmotic shock or ultrasonic shock waves.
Where does this come from, and is it solar powered? How much to these auxiliary "precesses" cost? What are the byproducts?

47 percent fewer particulates but 10 percent more nitrogen oxides.

Isn't his the nastiest stuff when it comes to the ***dreaded*** ozone hole? Won't cancers skyrocket?

Biodiesel appealed to the marginal members of society who would get it for free!
Bet that isn't happening much these days!
So many questions...
So few real answers.

[P-40]

Biodiesel appealed to the marginal members of society who would get it for free!

You must be thinking of used fry oil. That is the only widespread free source that I know of.

Biodiesel was selling for about twenty cents a gallon lower than regular diesel last I checked. If you are in an area that mandates the low sulfur diesel, the difference is larger from what I have seen.

And if you have a diesel engine...remember the low sulfur stuff doesn't lubricate very well...so buy the additive.