What are the other uses of transformer oil?

In addition to its primary function as an insulating and cooling medium in transformers, old transformer oil can also be repurposed for various applications. It is often used in the formulation of lubricants and hydraulic fluids due to its desirable viscosity and chemical stability. Moreover, old transformer oil can be utilized in the manufacturing of industrial greases and as a base for certain types of paints and varnishes. Its high dielectric strength makes it suitable for capacitor applications and it can also serve as a feedstock for renewable energy production through processes like pyrolysis or biodiesel production. Thus, the versatile properties of old transformer oil allow it to play multiple roles beyond its original use in electrical equipment.