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A comment on The cold hard truth about electric vehicles in winter. Parent comment

Re:The cold hard truth about electric vehicles in winter by throwaway0a5e on Friday March 04, 2022 @11:09AM (#30556637)
The amount of brake fluid that actually moves when you press the brake is trivial and with the forces involved it could be as thick as grease and still work mostly fine.

Unless you actively mix it with water (like you do antifreeze) you are going to have a hell of a time getting glycol based brake fluid to absorb enough water to freeze at any earthly temperature. Maybe if you ran a system without the cap on the reservoir for decades in a very humid climate you could do it but even then I think the odds are long at best.

I vote condensation.

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Re:The cold hard truth about electric vehicles in winter by giantg2 on Friday March 04, 2022 @11:26AM (#30556854)
My understanding is that the water contaminated fluid tends to concentrate at the bottom of the systems. With 20% of cars having systems with 5% water, that seems like the concentration could be higher in parts of the system. So I agree that it's probably unlikely (and only even possible in artic condidtions).
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