# Put window washer fluid in radiator overflow on accident

**URL:** <https://community.cartalk.com/t/put-window-washer-fluid-in-radiator-overflow-on-accident/44304>\
**Category:** Maintenance/Repairs\
**Tags:** scion, tc\
**Created:** [February 12, 2010, 12:14am UTC](https://community.cartalk.com/t/put-window-washer-fluid-in-radiator-overflow-on-accident/44304 "2010-02-12T00:14:01Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![vimes27](https://avatars.discourse-cdn.com/v4/letter/v/2acd7d/32.png) [@vimes27](https://community.cartalk.com/u/vimes27)\
**Post date:** [February 12, 2010, 12:14am UTC](https://community.cartalk.com/t/put-window-washer-fluid-in-radiator-overflow-on-accident/44304/1 "2010-02-12T00:14:01Z")

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If I accidentally put window washer fluid in my radiator overflow will it damage my cooling systme or my radiator?

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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:** [February 12, 2010, 12:20am UTC](https://community.cartalk.com/t/put-window-washer-fluid-in-radiator-overflow-on-accident/44304/2 "2010-02-12T00:20:08Z")

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It depends on how much was added. Washer fluid is mostly water with some methol alcohol mixed in. So it won’t hurt anything. But since its mostly water it does reduce the antifreeze/water ratio.

Tester

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**Author:** ![vimes27](https://avatars.discourse-cdn.com/v4/letter/v/2acd7d/32.png) [@vimes27](https://community.cartalk.com/u/vimes27)\
**Post date:** [February 12, 2010, 12:33am UTC](https://community.cartalk.com/t/put-window-washer-fluid-in-radiator-overflow-on-accident/44304/3 "2010-02-12T00:33:35Z")

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Thanks! Appreciate it!

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**Author:** ![Caddyman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/caddyman/32/23_2.png) [@Caddyman](https://community.cartalk.com/u/Caddyman)\
**Post date:** [February 12, 2010, 1:34am UTC](https://community.cartalk.com/t/put-window-washer-fluid-in-radiator-overflow-on-accident/44304/4 "2010-02-12T01:34:18Z")

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I would remove all I could with a turkey baster, something like that… Then refill the reservoir with 50-50 antifreeze mix…But it won’t hurt anything, the alcohol will boil off quickly…