Engine coolant: What is it and why is it important?

Engine coolant: what is it and why is it important? Engine coolant: what is it and why is it important?

Following a summer of heatwaves across Europe, we spoke to Texaco Lubricants experts to explore the role of engine coolant, why it is important for vehicle health, and what drivers should know about checking and maintaining their coolant levels.

 

What is engine coolant?

 

Also known as antifreeze, engine coolant is a blend of water and antifreeze that helps keep the temperature of the engine and its components at a safe level. As it circulates through the cooling system, coolant helps manage heat by either drawing it away from engine components or helping to warm them up when required.

Texaco EGX Antifreeze/Coolant is a premium antifreeze designed for use in passenger cars and heavy-duty applications. It is available as both a concentrate and in premixed 50/50, 40/60 and 55/45 concentrations.

 

Why is coolant important for a vehicle?

 

Coolant plays an important role in helping to regulate engine temperature and protect components within the cooling system. It is relevant to both petrol and diesel vehicles, including passenger cars, high-mileage vehicles and heavy-duty applications.

 

What can happen if a vehicle doesn't have enough coolant?

 

Having insufficient coolant can affect the cooling system's ability to manage engine temperature and can contribute to overheating. Without the appropriate coolant, components can also corrode, seize or become damaged. In more serious cases, engine damage can include a cracked engine block or cylinder head, a blown head gasket or pistons welding to cylinders.

 

How can drivers check their coolant level?

 

The coolant reservoir can usually be found in the engine bay. It is typically a clear plastic container with a cap, often marked 'Caution - Hot'. When the engine is cool, check that the coolant level sits between the 'min' and 'max' markings.
 

How often should drivers check their coolant?

 

Regularly checking coolant levels is an important part of basic vehicle maintenance. Drivers should also follow the vehicle manufacturer's guidance for checking and maintaining the cooling system and using the correct coolant.
 

Does coolant only help prevent overheating?

 

Managing engine temperature is one of its key roles, but coolant also helps protect components within the cooling system. Without the appropriate coolant, components can corrode, seize up and break.
 

What should drivers remember when it comes to engine coolant?

 

Checking the coolant level and using the correct coolant for the vehicle are both important parts of basic vehicle maintenance. Keeping the coolant at the appropriate level helps the cooling system perform its role in managing engine temperature and protecting engine components.

 

Overall, engine coolant plays an important role in helping to regulate engine temperature and protect components within a vehicle’s cooling system. With the right checks and maintenance in place, drivers can help ensure their cooling system continues to perform its essential role, particularly during periods of extreme temperatures.

 

 

Find out more about Texaco EGX Antifreeze/Coolant and how it fits your vehicle’s need.

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This article was written by Chevron technologists in collaboration with industry experts and global thought leaders.

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