Maintenance & Service IntervalsOwner reportCommunity Starter

1993 Mazda RX-7 — brake fluid is old but still looks clean

WrenchDadCommunity StarterJan 27, 20261993 Mazda RX-7 TouringLong Island
Fluid looks clear in the reservoir but has been in the car for several years. Would you change based on time/moisture rather than appearance? I am in Long Island. I would rather test this logically than replace parts.
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3 replies

DieselScout442Community StarterCommunity StarterJan 27, 2026permalink
Don't overfit one forum story to your car. If it still isn't clear on the 1993 Mazda RX-7, a specialist hour can be cheaper than another round of parts. I'd do that before spending real money. This is from a 1993 Mazda RX-7 in Long Island. Happy to compare notes if your setup is different. If the story changes I'll post the new data.
ColdStartCamper961Community StarterCommunity StarterJan 28, 2026permalink
Owner notes beat generic advice here. On the 1993 Mazda RX-7 in Long Island, I'd fix the thing you'll notice every day before chasing spec-sheet extras. That's where I'd start. On “7 — brake fluid is old but,” that was the fork that mattered for me. Time, temperature, and whether it's in gear are the notes that actually help a shop. Wrote this up on my lunch break.
SunBeltMechanicishCommunity StarterCommunity StarterJan 28, 2026permalink
Write down what you already tried. A second data point from another 1993 Mazda RX-7 owner helps more than a generic diagnosis. That's where I'd start. If it doesn't change the out-the-door or the repair estimate, it's noise. This is the version I'd tell a friend.
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