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30 Closed Cab PU · 06-12-2019, 11:59 AM

My understanding, please correct me if wrong.

What I do not understand is that a pressurized system is in modern cars so they can run hotter, more efficiently. Todays cars have materials that are able to work at the hotter temps.

Model As were not built to run that hot. You run up to 212, you run the risk of hurting the motor. Cylinder wall oil flash over, metal parts not spec'd to hotter temps, etc.

A pressurized system does not cool better and antifreeze does not cool better than water. They only allow you to run hotter before boiling.

I consider a boil over, steaming, water loss, coolant boiling @ 212 - as something wrong with the cooling system. Kinda an early warning something needs fixing ASAP.

06-12-2019, 11:59 AM	#39
30 Closed Cab PU Senior Member Join Date: Aug 2018 Posts: 2,332	Re: radiator failure My understanding, please correct me if wrong. What I do not understand is that a pressurized system is in modern cars so they can run hotter, more efficiently. Todays cars have materials that are able to work at the hotter temps. Model As were not built to run that hot. You run up to 212, you run the risk of hurting the motor. Cylinder wall oil flash over, metal parts not spec'd to hotter temps, etc. A pressurized system does not cool better and antifreeze does not cool better than water. They only allow you to run hotter before boiling. I consider a boil over, steaming, water loss, coolant boiling @ 212 - as something wrong with the cooling system. Kinda an early warning something needs fixing ASAP.