Yes, a higher psi (pounds per square inch) radiator cap does indeed raise the boiling point of the coolant.
The radiator cap is a crucial component in the vehicle’s cooling system. It serves as a gateway between the radiator and the rest of the cooling system. Here’s how it affects the boiling point of the coolant:
Pressure and Boiling Point:
Benefits of Maintaining Optimal Radiator Cap Pressure:
All parts of the cooling system works together. If one or two of the parts of the system are not working properly you can overheat.