Rain X fluid and Low Washer Fluid Sensor

[Hootbro]

I have never seen any correlation to put my finger on why it works for some or not for others.

It really is a simple product that one just pours in a reservoir and the only statement by Rain-X about mixing with other washer fluids is that it will reduce the effectiveness of their product but no prohibition from mixing.

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[mooreman21]

the only time I've seen them gunk up is when people use tap water to mix the concentrated versions