Again, both of you have taken what I've said, without including the context: until it's a widespread practice, it's practically *useless* until it gets more recognition and use. .0000001% of all fuel being used in diesel engines is biodiesel (perhaps even less). This has practically no impact. It's gaining in popularity to be sure, but it has to be widely adopted before there will be any real benefit.
The "turkey guts" idea (which, incidentally, takes *all* organic matter, not just turkey guts) won't eliminate the problem, but it will certainly make a dent. If it WAS widespread (ie a plant in every major city/town) you could take all the towns waste (stuff that was going to end up in a landfill) and just turn it into oil, instead of burying it in the ground.
And as for 'existing fuel standards' the oil that comes out is practically the same as crude oil, at a far cheaper price of $8-11 a barrel instead of the $50 we're paying now. And without the risks of transporting the crude over vast distances.
Don't get me wrong; I think biodiesel (or even SVO) is a great idea. But it's going to require a vast amount of land resources to grow the crops, then process them. This solution takes existing waste (which you can't deny there is a lot of it) and in a tenth of the space needed, converts it to a usable medium.