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1. How often do you change your brake fluid? Each season or after a certain number of track days?
Depends on the brake fluid you're running. I tried using Motul 600 at a suggestion from others and boiled it in 4 laps and I needed to bleed it pretty much after a single session (not day a single 20 min session). The Castrol SRF stuff I switched to I think can last me the whole season without bleeding. I'm at 4 track days and 4 time attack events on them and its still fine. You'll know it needs to be bled because your brakes feel like ass. I've found once you boil brake fluid it never really goes back to normal until you re-bleed.
2. I'm currently running the stock brake fluid in the stock brembos, I've only done 4 track days with them but I want to change the fluid for something better for track use. Amy suggestions? dot4?
Definitely upgrade brake fluid. Depending on how fast of a driver you are and how often you track something like Castrol SRF might be a good choice as it lasts a long time. If you only go once or twice a year ATE Typ 200 might be a better choice.
3. How much should it cost to get done at a shop?
I've not done it at a shop but I purchased a power bleeder for ~100 bucks and I just do it at home, takes like 10 mins.
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