Hi guys, how long will kerosene last? I had a forced hot air furnace in my shed. The furnace has been removed. I still have 30 gallons of kerosene with red dye left. It's stored in a 55 gallon drum that's still in the shed now. The shed is not heated. It gets 50 below in the winter and 90 in the summer. I still have the oil filter attached, can I pour it into my home oil tank to run my boiler?