Just joking with you but I replace oil tanks for a living...(not spamming just joking....and trying to enlighten you to the worst thing that can happen in your home besides a devastating fire) 44 years old....time to replace the tank.....it is years past the average life expectancy for a tank and if it is not a leak causing you the problem it will be no heat calls due to sludge buildup in your tank. Tanks do rot from the inside out....so you really can't tell how bad it is until it lets go....usually it will start out as a drop....but I have seen many instances where it was leaking badly off the bat! Homeowners insurance does not cover an oil spill 999 times out of 1000.......sooooooooo get it replaced for peace of minds sake! Sorry to rain on your parade but I see this on a daily basis.
