How to change anti-freeze?

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If you want your car to last longer, learn how to change the anti-freeze coolant. Car owners should change their coolant at least once a year. The process is not difficult.

Things you’ll need to change anti-freeze:

  • Service Repair Manual
  • 2-3 Gallon Drain Pan
  • 50-50 Antifreeze Coolant
  • Pliers
  • Steps to follow to change anti-freeze:

    Step 1: Safety Precautions

    Make sure you follow all the necessary safety precautions to prevent an accident. Avoid spilling the coolant and keep pets and children away from the work area. Make sure the engine is not running and wait until it is cool.

    Step 2: Drain Out Coolant

    Place the drain pan under the radiator petcock drain valve. Remove the petcock drain valve by hand or use a pair of pliers. Observe the anti-freeze leaving the recovery tank and the cooling system as it enters the drain pan.

    Step 3: Remove Engine Plugs

    Remove the radiator pressure cap to allow the rest of the coolant to leave the radiator. Use a wrench to remove the engine block drain plugs. Let the anti-freeze flow from the engine block into the drain pan. Make sure all the coolant has been drained from the radiator and the coolant recovery tank.

    Step 4: Refilling Cooling System

    Reinstall the engine block drain plugs and the petcock. Find out how much anti-freeze your car is supposed to have by reading the service repair manual. For example, if the manual says four quarts of anti-freeze, add two quarts of coolant and two quarts of water. Pour the 50-50 mixture of anti-freeze and water slowly into the radiator's filler neck with a funnel.

    Step 5: Start the Engine

    Turn the engine on and let it idle for a few minutes. Let the engine heat up without the radiator cap on. Turn on the car's heater to the high or hot position. Look into the radiator to see if the coolant is circulating. This means that the thermostat is open. Install the radiator cap and make sure the coolant recovery tank is full. Test the protection level of the coolant and you are done.


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