CSC/CMC problems at only 1000 miles

nis350

just curious how this is different than other synthetic brake fluid in keeping the rubber seals in good health under normal driving condition (non track)?

Spooler

I have used the Castrol stuff. It just didn't last long at all. The Motul RBF 600 I can go several oil changes before I need to exchange the fluid due to it getting nasty brown color. I can say the Motul is awesome. I can't say that about other brake fluid. Do what you want. That's all I will use.

flyfish

Boiling point and flash point of Motul RBF 600 will be much higher.

The hard line+hose that runs from the master to the slave is close to the cat. Your older fluid probably absorbed moisture, making the boil point even lower. If you crawl under and look, you will see that even under normal driving you could potentially have an issue.

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SouthArk370Z

Probably no better than any of the other top-quality brands - at this point - but it does seem to be the favorite for many on this site.

Since it appears that your CMC is going out (if it were the CSC, you'd be losing fluid), I'd flush the entire system (including CSC) to remove any trash and refill with a good-quality fluid (it will be replaced soon, so no sense using the high-dollar stuff; just don't cheap out) until you can get at least the CMC replaced. YMMV

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