Car maintenance might not be the most exciting topic for you, but neglecting it can lead to expensive repairs and inconvenient breakdowns. One important element for a healthy engine is car engine coolant.
Did you know that according to the Australian Automobile Association engine overheating is a leading cause of roadside assistance callouts in Australia? Without proper coolant, your engine could overheat and cause serious damage. Let’s find out what engine coolant is and why it’s so important.
What is Engine Coolant
Engine coolant is a liquid that circulates through your car’s engine to regulate its temperature. It’s essentially a 50/50 mix of two key ingredients:
- Water provides the base for the coolant mixture and excellent heat transfer capabilities.
- Antifreeze plays a role in protecting your engine in extreme temperatures. It lowers the freezing point of the coolant, preventing it from solidifying in cold weather, and raises the boiling point, stopping it from vaporising at high engine temperatures.
While various types of coolants are available, including silicate-based and organic acid technology (OAT) coolants, each with its own properties, it’s important to consult your car’s owner’s manual. The manual will specify the exact type of coolant for your vehicle for the best performance and protection.
Why is Engine Coolant Important
- Temperature Regulation
Your car’s engine is a powerhouse, but that power comes at a cost, which is heat. The combustion process that generates energy naturally produces high thermal energy. Maintaining a consistent engine temperature is important for performance and avoiding damage.
That is where engine coolant comes in. This fluid acts like a superhero, absorbing heat from the engine block and cylinder head. The heated coolant then travels to the radiator, which sheds its thermal load through the fins and into the surrounding air, keeping your engine cool.
- Freeze Protection
Freezing temperatures might not be a top concern. However, for used car buyers considering vehicles from colder regions, engine coolant’s freeze protection is the key. Without it, the coolant can solidify in frigid conditions, expanding and potentially cracking the engine block, leading to a costly repair.
This is where the antifreeze in your coolant helps. It acts like a magic shield, lowering the freezing point and preventing ice formation, keeping your engine safe even in the harshest winter.
- Corrosion Protection
Engine coolant isn’t just for keeping your engine cool. It also acts as a rustbuster. Special additives in the coolant form a protective layer on the metal components within the cooling system, like the radiator and water pump.
This shield helps prevent rust and corrosion, which can lead to leaks and component failure. These additives are important in extending the lifespan of your engine and cooling system, saving you money on repairs down the years.
- Lubrication
It’s worth noting that some coolants contain lubricants that provide an extra layer of protection. These lubricants help minimise friction on water pump bearings and other moving parts within the cooling system, promoting smoother operation and potentially extending their lifespan.
Signs of Low or Faulty Coolant
Ignoring your engine coolant can lead to trouble. Here’s what to watch out for:
- Overheating engine gauge
This is a classic sign of coolant issues. If your temperature gauge climbs into the red zone, pull over safely and let your engine cool before checking the coolant level.
- Low coolant reservoir level
Most cars have a translucent coolant reservoir. If the level is below the minimum line, it indicates you might be low on coolant.
- Leaking coolant
Keep an eye out for puddles of coolant under your car. Leaks can signal a loose hose, damaged radiator, or other cooling system problems.
- Unusual engine noises
A low coolant level can cause gurgling or boiling sounds coming from your engine.
- Steam from the engine bay
If you see steam coming from under the hood, it could be a sign of overheating coolant or a blown head gasket. In either case, stop the car immediately and let it cool before investigating further.
Maintaining Your Engine Coolant
Just like any other fluid in your car, engine coolant needs regular attention to function properly. Regular checks help catch potential issues early on and prevent major problems. Your car’s owner’s manual will specify the recommended service intervals for coolant replacement. It’s important to stick to this schedule for a good cooling performance.
Checking your coolant level is a simple process, but it’s always best to consult your owner’s manual for specific instructions on your vehicle.
Generally, you’ll find the coolant reservoir under the hood. With the engine cool, check the level against the markings on the reservoir. If it’s low, top it up with the correct coolant type recommended by your car manufacturer.
Using a high-quality coolant helps provide the necessary protection for your engine throughout its lifespan. Remember, neglecting your coolant can lead to overheating, which can be a major headache (and wallet-drainer).
If you ever find yourself stranded with an overheating engine in Canberra and want to sell the car, remember that we offer free car towing in Canberra.
Canberra Cash 4 Cars and Your Car’s Health
At Canberra Cash 4 Cars, we’re passionate about responsible car ownership and preventative maintenance. Keeping your engine cool with car engine coolant is important for its health and longevity. We understand that car care can be confusing, so we’re happy to offer a free visual inspection (subject to availability) to assess potential cooling system issues.Whether you’re looking for car maintenance advice, selling your unwanted vehicle, or need reliable cash for cars in Canberra, contact us today! We’re here to help you keep your car running smoothly.