The answer depends on the machine. The cap pressure will likely be different between a Corvette and a tractor or even between models of the same make. My suggestion would be to visit an auto supply store and simply look up the recommended cap for your vehicle.
Cheers
the radiator pressure cap was invented by Albert Einstein
No , the " radiator " cap / pressure cap is the thread on cap on the engine coolant reservoir
The thread on cap on the engine coolant reservoir is the pressure cap / radiator cap
The thread on cap on your engine coolant reservoir is your pressure cap / radiator cap
The thread on cap on your engine coolant reservoir is your pressure cap / radiator cap
No , the thread on cap on the engine coolant reservoir is the pressure cap / radiator cap
The thread on cap on your engine coolant reservoir is the pressure cap / radiator cap
The thread on cap on your engine coolant reservoir is the pressure cap / radiator cap
The thread on cap on your engine coolant reservoir is the pressure cap ( radiator cap )
The thread on cap on the engine coolant reservoir is the pressure cap ( radiator cap )
The radiator cap controls cooling system pressure.The radiator cap controls cooling system pressure.
With a radiator cap pressure tester. The tool usually comes along with a cooling system pressure test kit.