Interesting thread-
We had a guy locally that was collecting the used grease and oils from local restaurants and running such in his Volkswagen diesel. He'd built a fairly elaborate strainer and was able to all but eliminate pump purchases (which in his case was about 10 or 12 gallons a week). Car smelled a bit like Chinese take out, but I certainly admired his ingenuity.

Well, after a nice writeup in the local newspaper, the fine folks in Salem (Oregon) fined him for running "non-taxed fuel" and shut his in-home refinery down until such time as he could meet the States requirements for a petroleum distribution facility including fire control and suppression systems.

How ironic - in a "Green State" to penalize an individuals creativity for a lousy 50 gallons of recycled French fry grease every month. I guess they'd prefer to have the grease in the landfill.