Thermal or Viscous? Clutch fan.

CRUZE 418 said
Is it leaking oil? If not, it's probably good.
Clean it up.

I cleaned it up a bit. Hard to tell if it was leaking or not. It was covered in old dust. I cleaned up the thermo spring, and put a heat gun to it and the spring worked also was able to move the valve that the spring is attached too.