So then why doesn’t everybody do it?

1. Not everybody knows about it and there are a lot of false rumors floating around.
2. People hear about it but won't do because it's to unconventional.
3. With SVO you have to be willing to deal with dirty grease, with bio you have to take a few precautions.
4. It's less convenient, you can't just pull up to any gas station anywhere.
5. You need a diesel vehicle.
#1 doesn’t apply to you anymore, 2-4 are lame reasons and if you have a gasoline vehicle you can always sell it and buy a diesel. You're not everybody, so why don't you do it? Don’t follow the masses in burning gasoline, go alternative. No blood for oil but grease for peace.