Preventative Maintenance, Part 3; Checking Engine Coolant

Now that we have mastered checking the engine oil, the next step is to check the engine's coolant level. Before we go any farther, NEVER EVER REMOVE THE RADIATOR CAP WHEN THE ENGINE IS HOT. Most engines maintain a temperature of 195 to 210 degrees Fahrenheit. Coolant at this temperature can scald or burn your skin badly. Only check the coolant when the engine is cold and has not been ran for the day. The good thing about this is that most of the new vehicles do not even require that you remove the radiator cap when checking the cooling system.

Engine coolant is commonly referred to as antifreeze. It runs through the engine's cooling system to help keep the engine at a determined temperature set by the vehicle manufacturer. If an engine runs low on coolant, it can get too hot or overheat. Overheating can cause major engine damage.

When checking the coolant level, you need to locate the radiator cap. The radiator cap may be located on the radiator itself or may be on the coolant reservoir tank.

Cap Mounted On Radiator

Cap Mounted On Reservoir Tank

On the Radiator mounted cap, remove it by pushing down and turning the cap counter-clockwise. Once again,  NEVER EVER REMOVE THE RADIATOR CAP WHEN THE ENGINE IS HOT. Once the cap is removed, the coolant level should be level with the top of the radiator. On the reservoir type cooling system, you should be able to look through the tank and see where the coolant level is located. On the side of the tank there should be a range showing the safe zone or a cold fill line or range for the coolant.

The cap is removed from this system by turning the cap counter-clockwise.

If coolant is needed to be added, the top of the radiator cap will tell you if a special coolant is required or check the owners manual. Add the coolant to bring the level back up to the top of the radiator or within the safe zone of the reservoir tank. Re-install the cap on the radiator type by pushing down and turning it clockwise direction. The reservoir type will screw on in a clockwise direction.

These are the basic preventative maintenance procedures that should be performed at least once a week. Everyone should know how to check the oil and coolant level to help prevent major and costly engine damage. If you have any questions, please feel free to ask.

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