Engine Repair

How to Add Antifreeze to your Vehicle

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"How to Add Antifreeze to your Vehicle"
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Radiator liquid levels are the most important aspect to your vehicle's engine. Adding coolant can be done in two ways. One way is to use the radiator reservoir and the second is right into the radiator itself. Both ways are good, but vehicle manufacturers require adding coolant just to the reservoir. This is important for a couple of reasons. One reason is overfill. Over filling radiator coolant can cause damage to the radiator, not to mention causing environmental issues of spilling the excess onto the ground. The second reason for not over filling the radiator is built up pressure the excess fluid can cause inside your vehicle's engine.

Modern radiators today have less metal, and more heat tempered plastic added to them. The reason for this is to keep your vehicle light, and to help your vehicle get better gas mileage on the road. This is a great concept, but only as good as your vehicle's ability to dissipate heat away from the engine block. In order for your engine to properly circulate the coolant, it must sustain a good operating level of coolant with in the closed system.

There are many reasons your vehicle may run hot. Thermostat, water pump, bad radiator hoses, and the loss of coolant to your vehicle's engine. You should check your coolant fluid level every time you check or change your oil. The coolant reservoir has a locking cap with the words coolant written on top of the reservoir cover cap. A hose should run through the cap from the bottom of the reservoir to the over flow spout at the neck of the vehicles radiator cap. Never take the radiator cap off when the vehicles engine is hot. The radiator is under constant pressure during operation and this is the reason for adding coolant to the reservoir container. Adding coolant to the vehicles radiator reservoir keeps the operator safe from the scalding effects of removing the radiator cap while it is under pressure.

The radiator reservoir container has fill lines on the outside of the housing, so that you know the proper amount to add. It is simple and safe to do, and is self explanatory to the importance of your vehicles operation and safety.


1) Open the hood on your vehicle.

2) Look for the coolant reservoir around the engine compartment.

3) Check the fluid level in the coolant container by looking at the outside of the container's fluid level lines. If the fluid level is below operating requirements, only then do you add coolant.

4) Use only the manufacturers requirements for coolant to add.

5) Use a funnel to keep the coolant from spilling onto the sides of the container.

6) Replace the coolant cap on both containers. reservoir and coolant container jug.

7) Start engine and let the engine heat up to operating temperature.

8) You should check your cars temperature gauge to make sure the car is not running hotter than usual.

9) After the vehicle engine is hot. Check the coolant container in the engine compartment. Make sure the fluctuation of the fluid does not drop significantly below operating standards. If the fluid level looks good , then you are done.

More about this author: Rex Coker

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