Maintaining the engine temperature is an important step in ensuring proper function. This is where a car coolant comes in. It keeps the temperature stable while providing many other benefits. Some might assume that water can do the same job. However, that is far from the truth. The composition of a coolant is unlike water and neither can be used as a replacement for each other. If you are wondering, ‘Can I use water as a coolant?’. Dive in to understand the differences and consequences of using water as a coolant.
Car Coolant and its Function
Engine coolant is one of the most essential car fluids as it maintains the temperature of the car’s engine and ensures smooth driving. It is also known as antifreeze due to its temperature-resistant properties. Car coolants are typically made from a mixture of ethylene glycol, propylene glycol, water and some other additives.
The functions of a car coolant are:
Temperature Resistance
Car coolants ensure that the engine temperature remains stable even in extreme temperatures. It has an extremely elevated boiling point which prevents the fluid from heating up or evaporating. This ensures the car engine does not overheat when driving in extreme temperatures. The reduced freezing point of the coolant also keeps the car running during the cold weather and prevents freezing in the coolant reservoir.
It is essential to invest in a high-quality antifreeze if you live in a place with consistently low temperatures or heat spells.
Protection Against Corrosion
Most engine components are made of metal and are vulnerable to rust and corrosion if not maintained correctly. A corroding engine part will eventually break down and negatively impact the engine’s performance. A car coolant prevents this by lubricating the engine’s moving parts to avoid corrosion.
Improved Performance
Stable temperature and protection from corrosion can improve the overall driving experience and vehicle performance. The engine parts are protected from rust, increasing the life of the vehicle. Good quality coolants may also allow the vehicle to achieve better mileage.
Why it is Not Recommended to use Water as Coolant
Coolants are made with 50% water and 50% additives that allow them to have a higher boiling point and lower freezing point than water. The additives also contain inhibitors that prevent rust and corrosion in the metal engine parts and protect the engine from early wear and tear.
Here are the consequences of using water as a coolant
Overheating
It is not advisable to use plain or distilled water as a coolant because it cannot maintain a stable temperature in the engine block. This causes engine overheating. An overheated engine will significantly reduce the vehicle’s overall performance and may force you to stop the car and wait for the temperature to fall.
Heat is generated in the engine during the combustion process leading to extreme temperature in the cylinder. If this temperature is not lowered it can damage the cylinder head or cause a blown gasket head, this is why a coolant is needed. However, using water instead of a coolant can make things worse.
Water has a lower boiling point as compared to a coolant. Intense heat in the engine can easily boil the water causing it to evaporate. This leaves the engine with no coolant, allowing it to overheat. Overheating may lead to the gasket head blowing and other engine components to warp.
Similarly, during cold weather, water in the reservoir would freeze, causing the engine to malfunction. Freezing can also cause cracks in the radiator and heater core and damage the engine block. This reduces the life and the overall performance of the vehicle.
Corrosion
Using water can also lead to corrosion in multiple engine parts which can result in breakdowns and increase the risk of leakage.
However, in case of an emergency, such as driving with low coolant, you can use water as a coolant for a short while. Do not use any other fluid such as engine oil as coolant to avoid further damage. Bearing in mind that long-term use of water will have negative consequences, therefore, drain the engine coolant system and add new coolant in the radiator the moment it is available.
FAQs
What are the Risks of Using Water as a Coolant Long-Term?
Long-term use can lead to engine damage and corrosion in the cooling system. Water does not contain the inhibitors present in the coolant that helps prevent rust in engine parts.
What are the Benefits of Using Proper Engine Coolant?
A coolant ensures that the engine can perform well in all climates and maintains a stable temperature of the engine. It also protects engine parts from rust and corrosion.
Can I Mix Water With Engine Coolant?
It is not recommended to mix water with coolant as it dilutes the coolant and reduces its heat-resistant and corrosive inhibiting properties.
Can Distilled Water be Used as Coolant?
No, using distilled water as a coolant can have negative effects on the car engine. This is because distilled water does not have any minerals, as a result, it takes electrons from the metals in a car cooling system. This damages the cooling system in the long run.
This detailed overview should help answer the question, ‘Can I use water as a coolant for my car?’. Now that you understand the consequences of using water as a coolant, it is important to invest in a good-quality coolant or antifreeze for better performance.
In case of extensive damage to the engine block, it is recommended to change the vehicle. Look through these new cars for sale in the UAE to find a vehicle that offers top-notch performance. Stay tuned to dubizzle’s auto blog to answer all your questions regarding vehicle components.
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