Current State of Rust: 10 years above the salt belt

[tmontague]

Keep the rusted area covered with some sort of fluid film anti rust spray. Spray it at least 2x per year or more.

The slave cylinder bleed nipple with likely snap off, New slave cylinders are cheap so not a big deal. You still have a ton of time until the rust becomes a safety issue, just keep a layer of film in it.

Fwiw, if you plan to keep your car until it rots out then spending $100 per year every spring on an anti rust spray is well worth it.

I started this when I bought my yaris used 4 years ago and constantly spray every undercarriage bolt with a film anytime I'm under there as well as put anti seize on any bolt I've ever removed. My car is a dream to work on since everything is in such great shape. It's driven year round and we have an insane amount of salt out on our roads up here.