Hosspuller said:iceman said:my oil take is has a 1/4 till empty... about 82 gallons what can i put in it besides oil to get another say 80 gallons with out hurting my furnace? is there a mix... kero, transmission fluid,???
You can put kerosene, diesel, jet A or any similar fuels in the tank. YOU'll have to decide which is more cost effective than #2 fuel oil. I would stay away from any lubricating oils because they contain additives that could build up on the burner nozzle. This will require a service call and or new parts. What $$$ you save on fuel, you'll pay in service and parts. Waste oils are the same issue. Dirt and "stuff" are bad for a furnace designed for clean fuel.
Closest thing you'd probably get is either biodiesel or filtered waste veggie oil. I have NG, so I'm not sweating that, but I bet you could do a 50-50 mix of veggie and real fuel oil without losing much, and the veggie should be closer to $2/gallon (yes, it's a for sale commodity now).
Steve