Any moisture/ humidity in the air will be drawn to the brake fluid. Standard brake fluid is Hygroscopic, this moisture ,water in the brake fluid is attracted to itself. The moisture is heavier than brake fluid therefore it migrates to the lowest point in brake system. Yep ,that's the major reason you see the corrosion in the calipers and wheel cylinders.
And brake fluid is high temp operating fluid. Until it starts absorbing moisture, then the high temp boiling point starts dropping.
Dry boiling point and wet boiling point.
Testing has shown that a new brake system after two years in service has absorbed up to 3.7% water. The chart that follows shows the lower boiling point of that wetted brake fluid. The difference is quite a bit. This data goes hand in had with " flushing the fluid with new every TWO years. Or if your doing a brake job, then earlier, do it along with your service.
Big deal, bonus! 1. Your braking as to fluid will be great, far less chance of fading, fluid boil, brake loss. . 2. Your calipers and wheel cylinders will have a longer service life. $$$ !
I do this checklist item on the 93 and 95 every odd calendar year. The 98 Tahoe every even year. The Kiss princepl.
The chart shows how a small amount of water content screws up the fluid. Almost all fluid producers publish charts or have info on new dry fluid limits versus wet ( in-service ) fluid temp limits.
It's another preventative maintenance thing , and yeah, there are times when , hells bells is it that time already? But then I think I got trailer hooked up, my uncle's 57 nomad is on back and we got the " women who must be obeyed with us" and yep I better get started kicks in.
Information is one form of energy, use it wisely.
And brake fluid is high temp operating fluid. Until it starts absorbing moisture, then the high temp boiling point starts dropping.
Dry boiling point and wet boiling point.
Testing has shown that a new brake system after two years in service has absorbed up to 3.7% water. The chart that follows shows the lower boiling point of that wetted brake fluid. The difference is quite a bit. This data goes hand in had with " flushing the fluid with new every TWO years. Or if your doing a brake job, then earlier, do it along with your service.
Big deal, bonus! 1. Your braking as to fluid will be great, far less chance of fading, fluid boil, brake loss. . 2. Your calipers and wheel cylinders will have a longer service life. $$$ !
I do this checklist item on the 93 and 95 every odd calendar year. The 98 Tahoe every even year. The Kiss princepl.
The chart shows how a small amount of water content screws up the fluid. Almost all fluid producers publish charts or have info on new dry fluid limits versus wet ( in-service ) fluid temp limits.
It's another preventative maintenance thing , and yeah, there are times when , hells bells is it that time already? But then I think I got trailer hooked up, my uncle's 57 nomad is on back and we got the " women who must be obeyed with us" and yep I better get started kicks in.
Information is one form of energy, use it wisely.
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