Quote:
Originally Posted by oil pan 4
The radiator cap pressureizes the cooling system.
Pressureized coolant prevents nucleic boiling which causes hot spots to form on cylinder heads, hot spots cause cracks.
Pressure also it keep the coolant pump from cavitating.
It doesn't seem like a good idea to me.
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Awe, you beat me to it!!!
I'm with Oil Pan on this one, Brent. But your observations make me wonder whether there may be a slight difference between using EGW & PGW in our engines.