# Is Bar's Radiator Stop Leak safe to use

**URL:** <https://community.cartalk.com/t/is-bars-radiator-stop-leak-safe-to-use/63667>\
**Category:** Maintenance/Repairs\
**Tags:** m-class, mercedes-benz, leaks, radiators\
**Created:** [April 13, 2011, 2:05pm UTC](https://community.cartalk.com/t/is-bars-radiator-stop-leak-safe-to-use/63667 "2011-04-13T14:05:49Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![transman618](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/transman618/32/24_2.png) [@transman618](https://community.cartalk.com/u/transman618)\
**Post date:** [April 14, 2011, 3:59pm UTC](https://community.cartalk.com/t/is-bars-radiator-stop-leak-safe-to-use/63667/7 "2011-04-14T15:59:45Z")

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It might not have to be replaced. Radiator shops PROPERLY fix radiators every day, and for a lot less money than replacing. All those stop leak products are good for is emergency get-you-off-the-road-and-to-the-closest-shop times. I have seen some of those do more damage to an older motor, then you’re REALLY going to be spending some money. Do it right.

P.S. Always change the thermostat when you open up your cooling system.

transman

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