Related Clues:
- Core fluid
- Car-radiator contents
- Engine fluid
- Radiator fluid
- Nuclear reactor fluid
- Additive in radiator that stops engine overheating
- Car radiator need
- Freon, e.g
- Air or water, perhaps
- Liquid or gas used to remove heat from something
- Fluid removing heat
- Fluid that removes heat
- Excellent worker used to prevent overheating
- Heat-removing fluid
- Fluid circulating in an engine or reactor