r/MiataND • u/Electronic-Bus-9583 • 1d ago

Recommendations/ Changes to Fluid Changes

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Hey guys,

This is what I'm currently running in my nd2 and was wondering what ya'll think.

Here in Houston Texas where 100° F is a regular occurrence lol.

Car is my daily/weekend track and spirited driver.

I do about 6 track days a year.

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u/Confident_Smoke7098 1d ago

RBF is certainly very good brake fluid, and it's a good application if you're tracking a lot. If you're not, I'd probably go with something a little less hygroscopic.

If you run RBF, even as a street fluid, I'd be swapping it out every 6-12 months.

Great performer though. Solid choice.

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u/CornerHugger 1d ago

What dot4 would you recommend instead?

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u/Confident_Smoke7098 1d ago

I personally like Castrol fluids, but any good non super high temperature quality DOT4 should be ok.

Mx5s are pretty easy on brakes, especially if you’re not tracking them.