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Can I Add Coolant Straight to the Radiator? (Explained)

Updated: Feb 1

✔ This article has been fact checked.

The cooling system in your vehicle plays an important role in keeping your engine running at the right temperature. One of the key components of this system is the coolant, which is a mixture of water and antifreeze.

The coolant helps to dissipate the heat generated by the engine and prevents overheating. In order to keep your cooling system working properly, it's important to maintain the correct level of coolant in the system.

It's usually recommended to add coolant to the reservoir when topping up its levels, but in some circumstances, such as when you're flushing the cooling system, you can add it directly to the radiator instead.

In this article, we will discuss if you can add coolant straight to the radiator or if you should use the coolant reservoir instead.

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