I no longer fix things that work and don't leak.
This may be the short answer but it's helped me in the long view.
I replaced front brakes on 1998 Nissan Altima. As I was pushing the piston back in the caliper, I noticed a very small amount of brake fluid leaking out. Been keeping an eye on the master cylinder; hasn't seemed to drop in a few weeks. Any experience with this?

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