Stuck in traffic 340 got up to 220

This is what I found

What Temperature Is the Boiling Point for Antifreeze?
By Staff WriterLast Updated April 6, 2020




Pure antifreeze, which is the chemical ethylene glycol, has a boiling point of about 388.4 degrees Fahrenheit. However, most coolants are made of a combination of ethylene glycol and water.








A common mixture in a car radiator is 50 percent ethylene glycol and 50 percent water. This mixture has a boiling point of 223 degrees Fahrenheit. A mixture of 70 percent ethylene glycol and 30 percent water has a boiling point of 235 degrees Fahrenheit. Coolant should be about 200 degrees Fahrenheit for engines to run optimally.








A less-common type of antifreeze contains propylene glycol instead of ethylene glycol. This type has a boiling point of 370.8 degrees Fahrenheit.


I would say I just snuck in there..