Radiator Coolants buying guide: How to choose the right product from the above Radiator Coolants test or comparison

Understanding Radiator Coolant: What It Is and Why You Need It

What is Radiator Coolant?

Radiator coolant, often referred to as antifreeze, is a fluid crucial for maintaining your vehicle’s engine temperature. It circulates through the engine and radiator, absorbing heat and preventing the engine from overheating. Additionally, it lowers the freezing point of the liquid in colder climates, ensuring that your engine operates smoothly, regardless of the weather conditions. Essentially, it acts like your engine’s best friend, helping to keep everything running in perfect harmony.

Why is Radiator Coolant Important?

If we think of your engine as the heart of your vehicle, then the radiator coolant serves as its lifeblood. Without the right amount of coolant, your engine could run too hot, leading to serious damage or even a complete engine failure. Furthermore, radiator coolant helps to protect against rust and corrosion within the engine and cooling system. By maintaining appropriate coolant levels, we can ensure optimal engine performance and longevity.

Types of Radiator Coolants: Choosing the Right One for Your Vehicle

Different Types of Coolants

When it comes to radiator coolant, there are mainly two types: ethylene glycol and propylene glycol-based coolants. Ethylene glycol is the most common and is typically used in most vehicles due to its excellent heat transfer properties. On the other hand, propylene glycol is less toxic and is usually preferred for use in vehicles that may come into contact with pets or the environment.

Choosing the Right Coolant

Choosing the right radiator coolant often boils down to your vehicle’s specifications. We recommend always consulting your vehicle’s owner manual to see what the manufacturer recommends. Some vehicles may require specialised coolant, such as Organic Acid Technology (OAT) or Hybrid Organic Acid Technology (HOAT) coolants, which are designed to last longer and provide extra protection against corrosion. Always check compatibility to avoid mixing different types, which can lead to decreased efficiency.

How to Check and Maintain Radiator Coolant Levels: A Step-by-Step Guide

Checking Coolant Levels

To ensure your vehicle runs smoothly, we suggest checking the radiator coolant level regularly. Start by parking your vehicle on a flat surface, turning off the engine, and allowing it to cool. Once the engine is cool, locate the radiator cap or the coolant reservoir. The reservoir usually has marked lines indicating minimum and maximum levels. If the coolant is below the minimum line, it’s time to refill.

Maintaining coolant levels

When adding coolant, we recommend using a mixture of 50% coolant and 50% distilled water, unless your manufacturer specifies otherwise. Make sure to remove the cap slowly and carefully to avoid pressure release. Once topped up, replace the cap securely. Keeping an eye on your coolant levels can prevent overheating problems down the line and is a key element of engine maintenance.

Top Brands of Radiator Coolant: Our Recommendations

Popular Coolant Brands

In the world of radiator coolant, some brands stand out for their reliability and performance. We highly recommend brands such as Peak, Prestone, and Zerex. These brands have been a trusted choice among vehicle owners for years, offering a range of options suited for different types of vehicles and climates. When selecting a coolant, be sure to choose one from a reputable brand that meets your vehicle’s specifications for optimal performance.

Considerations When Choosing a Brand

While selecting a coolant brand is important, consider also the type that aligns with your car’s needs. Some brands offer specialised formulas for specific engine types, such as high-performance vehicles or older models, so it’s always beneficial to check compatibility before making a purchase.

How Often to Change Radiator Coolant: A Clear Timeline for Maintenance

Changing Coolant: How Frequently?

We suggest changing your radiator coolant every two to four years, depending on your vehicle’s requirements and the type of coolant used. Some extended-life coolants can last up to five years. Always consult your owner’s manual for the recommended interval specific to your make and model.

Signs It’s Time to Change Your Coolant

It’s also essential to be aware of signs indicating that it’s time for a coolant change. If you notice your coolant appears dirty or rusty, or if there’s a strong, sweet smell coming from the cooling system, these could be telltale signs that it’s time to replace it. Regular maintenance, including checking for leaks and the colour and condition of your coolant, will keep your engine healthy and functioning optimally.