Coolant Drain and Refill
How To Drain Coolant How To Refill Coolant Vehicle Coolant Bleed / Drain Procedure. Helpful Information Coolant can become corrosive if left inside the system for extended periods of time without changing. To prevent this corrosion the coolant must be changed at regular intervals. In cold weather coolant or antifreeze (same thing) prevent the engine block and other components from freezing. Coolant and antifreeze refer to the same product, in below freezing, coolant lowers the freeze point hence the name anti-freeze and in warm weather coolant helps raise the boiling point, "coolant". All engine coolants are highly toxic and should be kept away from animals. There are many types of engine coolant, colors range from green, blue, red and yellow which possess various properties that help against corrosion and overheating. Be leery of harsh chemical flushes because they can cause premature cooling systems failure. Some manufacturers recommend partially filling the sy...