Yeah I know from soybeans it makes no sense. All the Cantonese fry oil is spoken for by the hippies.
Here's my idea:
Cheapest bulk wholesale regular petro diesel (25-73%)
Biodiesel derived from whatever tree and seed nuts/squished fat rednecks and hippies/chimichanga fry oil (25-73%)
Used (filtered) motor oil (1-5%)
Power and anti-gel additives (<1%)
Charge eco-premium price. Employ cheap labor from BiTOG oil head labor pool.
Who's in? Any cash sponsors?