[from occupied ga]

Everyone uses cooking oils at home, and I'd love to be able to put our old used grease and oils to work in our fuel tan

I don't drive all that much - probably a lot less than the average and yet my family uses 10 - 20 gal of motor fuel a week. We cook, and go through about a quart of cooking oil every couple of months. Some is eaten and some is discarded. If I saved, filered, chemically purified the leftover oil for about 20 years, I might get enough run my old diesel for about three days.

[Red Badger]

Yes, that's not a lot, but multiply that by millions of households. A lot of waste going down the drain, or dog...........

[Red Badger]

We cook, and go through about a quart of cooking oil every couple of months

We go thru about a gallon a month...........