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How Long Can I Drive with a Radiator Leak?

I’ve noticed a tiny puddle of fluid underneath where I park my car for the past week. I’m pretty sure it’s coming from the radiator, but I don’t have time to get it looked at. How long can I drive around with a radiator leak before it becomes a problem?

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Kathryn Mae Kurlychek · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
It’s definitely a hassle having to put life on hold when car problems arrive—luckily, you can get around with a radiator leak for a short while so long as you’re prepared to keep topping off the coolant.
Depending on the reason that your radiator’s leaking, you may be fine driving around for a week or two and just refilling the radiator tank with coolant as needed. But if your radiator leak is serious, topping off the coolant a couple of times a week might not cut it—unless you’re prepared to drop big bucks on 50/50.
Once your radiator runs out of coolant, you won’t be able to drive more than a minute or two before your car’s engine starts overheating. So, finding time to bring it to a
professional for repairs
is something you should do sooner rather than later!
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