Quote:
Originally Posted by dpg
I have just one question. What happens to all the used oil that comes from oil changes from every car across this country? Can this be burned as heat? Is there a furnace that can take it (with some conditioning I'm sure?) Is it currently being done? Well three questions! 
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Many auto shops, including my mechanics, are putting in furnaces that burn motor oil. He loves it, calls it his free heat. I told him that I should charge him for the used oil.