They say my car is the one that runs the best on biodiesel from this used grease, but I have nowhere (garage or shed) to process it, so I don't bother.
I have a carpenter friend with a DuraMax diesel who has been collecting grease and making his own fuel for years. He does it in a two gar garage with room to park the big truck, mower, rototiller and more. He estimates his fuel costs are a bit over a buck a gallon and the set up cost him under $300 about six years ago.
Is the processing basically pumping thru a good filtration system?
I have no idea why people go to all the trouble to make biodiesel when you can run a vehicle on used vegetable oil. there’s a local that’s been running a Cummins on SVO for years. All he does is filter it.