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Do Car Radiator Sealants Work? (Explained)

Updated: Feb 1

✔ This article has been fact checked.

A radiator leak can be a major issue for car owners, it can lead to coolant loss, overheating, costly repairs and even engine damage if left unfixed.

One solution that many people use to fix a leak in their vehicles cooling system is a radiator leak sealant, a liquid or powder product that can be added to the car's coolant system to seal small leaks.

In this article, we'll take a closer look at the effectiveness of leak sealants, how they work, and potential risks and downsides.

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