corroded brake booster/leaky brake MC

[G-E]

@rmallari

i lose about half the brake fluid in the master cylinder reservoir each month. i changed both the MC and brake booster last year because of the same problem. the paint on the tower/frame under the MC and brake booster is all eaten away and i’d just like to know if the cause is from a faulty master cylinder or brake booster or both. thanks.

-Roel

as with all disappearing fluid… follow the leaks… if there are no leaks that also tells us something… leave a sheet of newspaper under the car held down with tape

check the slave cylinder? are the soft lines weeping?, any drips on the driveway?