Comparing 16 PSI Radiator Cap to Carbonated Soda Can Pressures

AJ/FormS said

For my system, running a 16psi cap on a 46 year old rad is just asking for trouble, creating the conditions for a catastrophic failure.

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I blew the top tank almost completely off an original radiator with a 16lb cap once.
Actually surprised me that a hose didn't go first, but it made me question the solder joints strength because it looked like it had been re soldered at some point in the past.
(Big hill in traffic on a real hot day.)