# Used car, sudden white exhaust that has sickening smell

**URL:** <https://community.cartalk.com/t/used-car-sudden-white-exhaust-that-has-sickening-smell/86014>\
**Category:** Maintenance/Repairs\
**Created:** [July 15, 2014, 12:50am UTC](https://community.cartalk.com/t/used-car-sudden-white-exhaust-that-has-sickening-smell/86014 "2014-07-15T00:50:18Z")\
**Posts on this page:** 2\
**Page:** 2

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**Author:** ![wesw](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/wesw/32/2713_2.png) [@wesw](https://community.cartalk.com/u/wesw)\
**Post date:** [July 17, 2014, 3:25am UTC](https://community.cartalk.com/t/used-car-sudden-white-exhaust-that-has-sickening-smell/86014/21 "2014-07-17T03:25:57Z")

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if they are a established luxury car dealer , the thought of bad publicity and a letter from your lawyer and a negative report from another shop might do the trick

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**Author:** ![gardener555](https://avatars.discourse-cdn.com/v4/letter/g/a4c791/32.png) [@gardener555](https://community.cartalk.com/u/gardener555)\
**Post date:** [July 17, 2014, 11:12pm UTC](https://community.cartalk.com/t/used-car-sudden-white-exhaust-that-has-sickening-smell/86014/22 "2014-07-17T23:12:07Z")

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Supposing the dealer’s service department put some sort of stop leak product in the radiator fluid to sell the car…

and now that I have been there once complaining of white smoke coming out of the tail pipe, supposing they put more stop leak product in…

I read that the stop leak products have the potential of plugging up the heater core, and even reducing the functionality of the radiator.

Is there a test that can be performed on the radiator fluid for the presence of a stop leak product?  
(maybe I should start a new thread with just that question)

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