Originally Posted by R Leo

.04/gal? Wow! I'll be willing to bet you have to contract for tens of thousands of gallons/month for that price which would make storage a real issue.
That said, I'd still be filtering that oil to <10 microns, regardless of the source. Howsabout cutting it with diesel or B-100 to lower the cloud point?
FWIW, here some info on the cetane ratings of various oils.