3.2L cooling system info - Jeep Garage - Jeep Forum

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Old 01-10-2014, 10:47 AM
My Jeep: 2014 3.2L KL
Join Date: Dec 2013
Location: MD
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3.2L cooling system info

Coolant thermostat opens at 220 degrees F.
PN 68136754AA for housing with thermostat, cost $46.45
Not aware of any other available temperatures.
Thermostat seal PN 04893377AA (possibly comes with housing?)

Radiator cap, on the recovery tank, coolant pressure is 21 PSI.
PN 68096261AA, cost $11.25

Coolant, 10 year, 50/50 mix boiling point 265 degrees F using 15 PSI radiator cap. PN 68163849AA, cost $36.10/Gal
Boiling point at atmospheric pressure 227 degrees F.

What is the boiling point of 50/50 coolant with a 21 PSI radiator cap??
My guess is 275 degrees F. Does anyone know how to do the math?

Is this a good reason to use 89 octane gas?

Please let me know if there are any errors.

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