Does antifreeze help to warm the car in the winter?

no, anti freeze doesnt warm a car up, the purpose of anti freeze is to keep your down at a certain temperature. the engine bock creates the heat the anti freeze keeps it at a certain temp. most of the time between 180-195 degrees

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When parked, anti-freeze lowers the temperature at which your coolant would freeze- does not make the car warmer, it allows it to get colder without damage. It also RAISES the boiling point of the coolant, so that it can be 230 degrees, but not boiling.