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Review on High Performance Stant 10231 Radiator Cap - Vented (16 PSI) by Ron Long

Revainrating 5 out of 5

Non-Full Pressure Cap

This stant cap is not a full pressure cap. This is "partial pressure". The vacuum relief valve will remain open until the coolant begins to boil. The whole point of a sealed lid in a cooling system is to prevent water from boiling in the first place. This cap won't do it because it won't pressurize the cooling system.

Pros
  • Free for Educational Use
Cons
  • Frequency