Pros and cons of Dot 5 brake fluid

Cons:
Potential for aeration if doing repeated pedal pumping.
More sensitive to air in the system.  Do not use a pressure bleeder to bleed the brakes.
Complaints about a non-firm pedal in some applications.  Air?
System must be cleaned completely of Non Dot 5 fluids before using.
Incompatible with the standard glycol based brake fluids.  Dot 5 is silicone based.
Must be labeled to insure that a non Dot 5 fluid is not put into a system that has Dot 5.
Easily confused with Dot 5.1 which is glycol based.
Some rubber components may not be Dot 5 compatible.
More expensive and harder to find that Dot 3-4 fluids.
Not all stores will have Dot 5 brake fluid available.

Pros:
Not hydroscopic meaning it will not pull atmospheric moisture into the brake system.
No mud forming in the wheel cylinders over the long haul.
Rust in the brake system is minimized.
Less maintenance when rebuilding a system that has been using Dot 5 fluid.
Safe for painted surfaces.
Higher boiling point.
Much longer life span than Dot 3-4 fluids.

With that being said, all my race cars use Dot 5 fluid.  I also have a pair of Vintage cars using it.  My ’55 Customline has had Dot 5 fluid for over 200K miles and zero issues.  I’ve been into the ‘55’s brake system during that time frame for a rebuild and all the wheel cylinders were nice and clean; no mud, no sludge.  The master cylinders on my Dot 5 equipped vehicles all have their fill lids appropriately labeled so that glycol based fluids do not accidentally get used.

Feel free to add additional comments.  Horror stories always welcome.

Lorena, Texas (South of Waco)

He skirted the issue. I asked because they state in their literature that if you use DOT 5, it will void their product warranty on the Power Brake Booster system that they sell.

There is a very good reason(s) but it is concerning why the rep would not or could not explain why.

Read Here - https://techtalk.mpbrakes.com/brake-fluid/can-i-use-dot-5

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I asked that question of Master Power Brakes Salesman and got a non-answer. He skirted the issue. I asked because they state in their literature that if you use DOT 5, it will void their product warranty on the Power Brake Booster system that they sell.I invite everyones's comments    Dick Palmer