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Wiper fluid keeps freezing


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Why does my wiper fluid keep freezing? Its rated for -25 and has only gotten down to 5 degrees. Last year we had days -25 and it never froze so why now? I hit the squirter and nothing comes out its totally full but frozen like an ice block

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Either blended with summer diluting the alcohol so it was still able to freeze or maybe just a bad batch. On a warm day drain it refill with winter stuff and run the heck out of the pump to get the winter stuff into the lines. Hopefully the pump is OK.

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Happened to my Z some weeks ago. The reservoir had summer formula, but it wasn't full so I poured in the winter formula and the next day, windshield washer worked again; pumpis fine.

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Try a Hair dryer / Heat gun . that way you can point it at the tank and wriper lines . when it get's unfrozen ,drain/pump it empty, then put New stuff in. Good Luck

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What I'm wondering is that the fluid should stay liquid down to -20F, but now it's frozen solid. What was the mistake? Manufacturer labeled it wrong? Did someone read the writing wrong (supposed to be 20F or +20F)? Was it somehow diluted with straight water in the reservoir?

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