The radiator plays a crucial role in keeping your vehicle cool while it’s running. To ensure optimal performance and prevent your engine from overheating, using the right coolant is essential. In this article, we’ll address common questions regarding which coolant to put in your radiator.

What is Coolant and Why is it Important?

Coolant, also known as antifreeze, is a liquid substance that helps regulate the temperature of your engine by dissipating heat. It prevents your engine from freezing in cold temperatures and protects against corrosion and rust, increasing the lifespan of your cooling system. Additionally, coolant also helps optimize the performance of your engine.

Is All Coolant the Same?

No, there are different types of coolant available on the market. It’s essential to choose the one that best suits your vehicle’s requirements.

Traditional Green Coolant (Ethylene Glycol)

Traditional green coolant, also known as ethylene glycol coolant, is the most common option found in older vehicles. It provides effective corrosion protection and has a long lifespan. However, it’s toxic and requires careful handling and disposal.

Extended Life Coolants (OAT/HOAT)

Extended Life Coolants, also known as Organic Acid Technology (OAT) or Hybrid Organic Acid Technology (HOAT) coolants, are designed to have a longer lifespan than traditional coolants. They provide better temperature control and are less toxic than ethylene glycol. These coolants often have a distinctive color, such as orange, yellow, or pink, making them easy to identify.

What Coolant Does Your Vehicle Manufacturer Recommend?

It’s always best to consult your vehicle’s owner manual or contact the manufacturer directly to determine the recommended coolant for your specific make and model. Following the manufacturer’s guidelines will ensure you use the coolant that meets the necessary specifications and requirements for optimal performance.

Can You Mix Different Types of Coolant?

No, it is not recommended to mix different types of coolant. Each type of coolant has its specific additives and chemical composition. Mixing them can lead to chemical reactions, reduced effectiveness, and potential damage to your cooling system. Always use the same type of coolant recommended by your vehicle manufacturer.

What if You Don’t Know the Coolant Currently in Your Radiator?

If you’re unsure about the type of coolant already in your radiator, it’s best to have it flushed and refilled by a professional mechanic. Flushing the system ensures all remnants of the previous coolant are removed, and the new coolant can function properly without any adverse effects.

Choosing the right coolant for your radiator is crucial in maintaining the optimal performance of your vehicle’s cooling system. It’s always best to follow your vehicle manufacturer’s recommendations and avoid mixing different types of coolants. If in doubt, consult a professional mechanic who can help you make the best decision and ensure your engine stays cool under all conditions.

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