Can i top radiator up with water on pt cruiser 2001

If you live in a warm weather climate that does not get below freezing temps than temporarily topping off with water until a repair is made is fine. Anti-freeze has other properties besides keeping the coolant from freezing. It also helps keep the engine cool by more efficiently transferring heat out of the engine. It also has anti-corrosion additives that keep metal parts from corroding.

So although it may seem that anti-freeze has only one purpose it actually has several.

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