Technician A says an ethylene glycol and water mixture lowers the freezing point of the coolant. Technician B says an ethylene glycol and water mixture raises the boiling point of the coolant. Both are correct.
Ethylene glycol is an organic compound. It is used in two main purposes: manufacture of polyester fiber, and as antifreeze formulation.
It lowers the freezing point of the coolant and raises the boiling point of the coolant.
Thus, Both Technician A and B are correct.
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