Antifreeze: What is it and why is it important?
As temperatures change, we spoke to Texaco Lubricants experts to explore what antifreeze is, the role it plays within a vehicle’s cooling system, and why choosing and maintaining the correct antifreeze is important for engine operation.
What is antifreeze?
Antifreeze is a fluid that is mixed with water to create engine coolant. It helps regulate the temperature of the engine and its components, while also helping to protect the cooling system.
As it circulates through the cooling system, the coolant helps manage heat by 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.
Does antifreeze prevent coolant from freezing?
One of the key functions associated with antifreeze is helping to protect the cooling system against freezing in low temperatures. However, its role extends beyond this.
When mixed with water to form engine coolant, antifreeze also helps regulate engine temperature and protect components within the cooling system, making it an important part of vehicle maintenance throughout the year.
What happens if antifreeze isn't maintained correctly?
If a vehicle has insufficient coolant, its cooling system may not be able to manage engine temperature effectively, potentially contributing to overheating.
The use of incorrect coolant can also affect the protection provided to cooling system components. Without the appropriate coolant, components can be exposed to damage or corrosion.
Can antifreeze help protect against corrosion?
Antifreeze can help protect components within the vehicle’s cooling system from corrosion, as well as helping to protect against other forms of damage.
This is one reason why simply topping up a cooling system with water, rather than maintaining the appropriate coolant, may not provide the protection required. Motorists should always follow the vehicle manufacturer's guidance on the correct coolant and concentration for their vehicle.
How should antifreeze be checked?
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, drivers can check that the coolant level sits between the 'min' and 'max' markings. They should also follow the vehicle manufacturer's guidance when checking and maintaining the cooling system. Never remove the coolant reservoir or radiator cap while the system is hot or pressurised.
How often should antifreeze be checked?
Checking coolant levels regularly – especially ahead of longer trips – is an important part of basic vehicle maintenance. It is important to use the correct product for the vehicle rather than assuming that all antifreeze or coolant products are interchangeable.
Is antifreeze only important in winter?
No. Although antifreeze is particularly associated with protecting vehicles in cold conditions, its role is not limited to preventing freezing.
The coolant created by mixing antifreeze with water helps regulate engine temperature and protect components within the cooling system throughout the year. This makes maintaining the correct coolant level and using the appropriate product important regardless of the season.
Importantly, concentrate must be diluted in the specified ratio and with suitable water, where required in accordance with manufacturer guidelines.
What should drivers remember about antifreeze?
Overall, antifreeze does much more than its name might suggest. While it does help to protect against freezing, the right antifreeze also contributes to effective temperature management and protection of the cooling system.
Importantly, it comes down to checking coolant levels regularly and following the vehicle manufacturer's guidance. That is how drivers can help support their vehicle's cooling system so it continues to perform its essential role.
Find out more about Texaco EGX Antifreeze/Coolant and how it fits your vehicle’s needs.
