Over time, external factors such as weather or internal pressure changes can cause an oil tank to warp or deform. A deformed tank may not function efficiently and may be at risk of rupture or failure, leading to potential oil leaks.
Visible cracks or fissures on the tank surface are an immediate red flag. Not only do they indicate that the tank is aging, but they also increase the risk of oil leakage, which can lead to environmental hazards and loss of heating fuel. It's imperative that cracked tanks are addressed promptly to prevent major problems.