Do you know what does it measure actually?Brake fluid change interval is usually based on time, and that depends on the average humidity in your area.
I change mine based in the indications from my cheap tester that I bought on Amazon.
https://www.amazon.com/Aicevoos-Tester-Strips-Calibrated-DOT-5-1/dp/B0C1SFRRGB/ref=sr_1_2?crid=UX9YY0CUBG5Z&keywords=Brake+Fluid+Tester+-+calibrated+for+DOT+4&qid=1708289440&s=automotive&sprefix=brake+fluid+tester+-+calibrated+for+dot+4+,automotive,139&sr=1-2
I guess there might be different reasons for changing the brake fluid then, which are quite independent.I believe conductivity due to retained moisture - It correlated with my old Fluke 77 resistance measurement.
Not sure why a lot of folk in this thread think brake fluid is trashed after water absorption. All brake fluid will be saturated with water after a couple years, they will still work after though. A lot of brake fluids specify wet braking temp before boiling. Pick a fluid that does well if you’re concerned about this (Castro SRF).Hey everyone, got a quick question for you all. When did you change your brake fluid? My Mach 1 is a 2021 but only had about 10k miles on it, is it worth it to change the brake fluid yet? Or should I wait until the recommended mileage interval?
This. Don't overthink it, especially if you street drive, your brakes will be fine, you won't boil the fluid on the way to work.If you track your car, every year do a brake flush.
If street, do it like any other car. replace when fluid is dirty or brakes are soft after repeated use. Or follow the interval, whichever first.
Do you track the car?Hey everyone, got a quick question for you all. When did you change your brake fluid? My Mach 1 is a 2021 but only had about 10k miles on it, is it worth it to change the brake fluid yet? Or should I wait until the recommended mileage interval?
My recommendation is for folks here to search for a reliable source, and the results will most likely contradict the advice offered above.Not sure why a lot of folk in this thread think brake fluid is trashed after water absorption. All brake fluid will be saturated with water after a couple years, they will still work after though. A lot of brake fluids specify wet braking temp before boiling. Pick a fluid that does well if you’re concerned about this (Castro SRF).
Dirty - what's the criteria?If street, do it like any other car. replace when fluid is dirty or brakes are soft after repeated use. Or follow the interval, whichever first.
Brake fluid saturated with water will not cause an immediate failure. To be honest, checking for cracks or old brake hoses/rusted lines is way more important than wet BF. Wet BF will have a lower boiling point, ie your brakes get softer quicker after repetitive use. So there will be signs.My recommendation is for folks here to search for a reliable source, and the results will most likely contradict the advice offered above.
Why Is Moisture in the Fluid a Problem?
Dirty - what's the criteria?
Or they just fail at the most inopportune time.