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September 25, 2024

The Importance of Coolant Fluids: What You Need to Know

The Importance of Coolant Fluids (Antifreeze): How They Work and When to Replace Them

Drivers in Newport News are saying hello to Fall even though we are still having temperatures nearing the 80s. But the heat is a good reminder of how important coolant fluid is to our cars, Jeeps and trucks. Because, coolant fluid, also known as antifreeze, plays a vital role in keeping your vehicle running smoothly and efficiently. But, though often overlooked, the coolant is essential for regulating the engine’s temperature and preventing costly damage that can result from overheating or freezing. So, in this blog the experts at Meineke in Newport News dig into the importance of coolant, how it works, and when to replace it. Because, this can save you from engine breakdowns and expensive repairs.

What is Coolant (Antifreeze)?

Coolant is a liquid, usually a mixture of water and glycol (ethylene or propylene glycol), that is designed to regulate your vehicle's engine temperature. And the term “antifreeze” comes from its ability to prevent the liquid from freezing in cold temperatures. Whereas, the term “coolant” refers to its role in keeping the engine cool during hot conditions.

Most coolants are also formulated with additives that prevent rust, corrosion, and deposits from forming inside the engine and radiator. Because, without these protective features, engine parts could deteriorate prematurely, leading to expensive repairs.

How Coolant Fluids Work

When your vehicle’s engine is running, it produces a significant amount of heat. So, the coolant circulates through the engine block, absorbing this heat and then transferring it to the radiator. And the radiator cools the fluid by dispersing the heat into the air outside the vehicle. Because of this cycling, it keeps the engine at an optimal temperature, preventing overheating during operation.

In colder weather, antifreeze helps prevent the water in the cooling system from freezing. Because, frozen coolant can expand and cause serious damage, such as cracking the engine block or radiator. Whereas, the glycol in antifreeze lowers the freezing point of the liquid, keeping it in a fluid state even in subzero temperatures.

Signs You Need to Replace Your Antifreeze

Just like other vehicle fluids, coolant degrades over time and loses its ability to protect your engine from extreme temperatures. So, let look at some telltale signs that it might be time to replace your antifreeze:

Overheating Engine

If your engine is running hotter than usual or frequently overheating, it could be due to old or insufficient coolant. Because, the coolant may have lost its ability to absorb and disperse heat effectively, leading to an overheating engine.

Coolant Level is Low

Regularly checking the coolant level in the reservoir is a good habit. And if you notice the level is consistently low, it could mean there’s a leak in the system. So, while topping off the coolant is a temporary fix, it's important to call Meineke in Newport News to address any leaks promptly.

Discolored or Dirty Coolant

Fresh coolant is usually bright green, yellow, orange, or pink, depending on the type. So, if your coolant looks rusty, brown, or cloudy, it's a sign that the additives have broken down, and contaminants are building up in the system. And, this can lead to clogged hoses or a failing radiator.

Sweet Smell or Coolant Puddles Under the Car

Coolant has a distinct sweet smell. So, if you smell it inside the car or notice puddles of bright-colored liquid under the engine, it’s a sign of a leak. And, leaking coolant will reduce the system’s ability to keep your engine cool and can lead to overheating.

Scheduled Maintenance Interval

Most vehicle manufacturers recommend replacing the coolant at specific intervals. So, check your owner's manual for the recommended maintenance schedule to ensure you’re replacing the antifreeze before it becomes a problem. And then call Meineke to work out a maintenance schedule that suites your needs.

Why Timely Antifreeze Replacement Matters

Failing to replace worn-out or low coolant can lead to several serious engine issues:

  • Engine Overheating: Without proper coolant levels, your engine can overheat. And this can lead to warping of engine parts, a cracked engine, or a complete engine failure.

  • Corrosion and Rust: The additives in coolant protect against rust and corrosion. But, over time, these additives wear out, allowing metal parts in the engine and radiator to corrode. And this can clog the system and lead to leaks or even more extensive damage.

  • Freezing in Cold Weather: In winter, old or low antifreeze might not prevent the coolant from freezing. And this can result in cracked engine blocks or damaged cooling system components.

Coolant fluid is key for keeping your vehicle’s engine in top working condition

Knowing when to replace your coolant and maintaining proper levels can prevent engine overheating, corrosion, and costly repairs. So, make it a regular part of your vehicle’s maintenance routine, and your engine will thank you for it. But, if you’re unsure whether your coolant needs replacing, don’t hesitate to ask the trusted mechanic at Meineke in Newport News. Because, they can test its condition and help you keep your engine running smoothly for years to come.

If the Meineke in Newport News is not convenient, check out these other locally-owned Meineke locations:

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