# Radiator stop leak

**URL:** <https://community.cartalk.com/t/radiator-stop-leak/73635>\
**Category:** Maintenance/Repairs\
**Created:** [July 20, 2012, 7:27am UTC](https://community.cartalk.com/t/radiator-stop-leak/73635 "2012-07-20T07:27:56Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![halaszarch](https://avatars.discourse-cdn.com/v4/letter/h/ee7513/32.png) [@halaszarch](https://community.cartalk.com/u/halaszarch)\
**Post date:** [July 20, 2012, 7:27am UTC](https://community.cartalk.com/t/radiator-stop-leak/73635/1 "2012-07-20T07:27:56Z")

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I have a 2000 Nissan Maxima with 177K. I’m planning on getting a new car in a few months. The radiator has a small leak at the top. Is a product such as Barr’s stop leak a viable solution to get me through a few months or will it cause problems?

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [July 20, 2012, 7:37am UTC](https://community.cartalk.com/t/radiator-stop-leak/73635/2 "2012-07-20T07:37:21Z")

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Here’s what you do. When the engine is cold, open the pressure cap be it on the radiator or the reservior, and pour as tablespoon of black pepper into the coolant. Then drive the vehicle . The coolant leak will stop with-in a day.

Tester