I have a very good source for high quality machine grease (from a local mine operation equipment) and would like to use it as the raw material for a Biodiesel operation. i am looking at production of approx. 2,000 gallons per month - any input on using this raw material and /or processing it would be appreciated.

The raw material must be vegetable or animal based. I assume the grease you're talking about is for equipment lubrication...it will not work.