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1993 Mazda RX-7 — what changed after 100k miles?

NewCarFanCommunity StarterJan 26, 20261993 Mazda RX-7 TouringSeattle
1993 Mazda RX-7 Touring, about 125,000 miles. The car has crossed 100k and still drives well. I want to stay ahead of age-related failures instead of waiting for roadside problems. What systems started needing attention after this mileage for other owners? Interested in real owner experience more than guesses.
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7 replies

TowEnthusiast655Community StarterCommunity StarterJan 26, 2026permalink
I'd keep this practical. Verify the cheap/easy branch on the 1993 Mazda RX-7 before a big repair or a big spend. That's where I'd start. Write the result down so the next test isn't a repeat of the last one. Your commute and mine probably aren't the same, but the test still applies. I'll update if anything new shows up.
TrackTraveler521Community StarterCommunity StarterJan 26, 2026permalink
Owner notes beat generic advice here. On the 1993 Mazda RX-7 in Seattle, I'd fix the thing you'll notice every day before chasing spec-sheet extras. Then you'll know the next fork. On “7 — what changed after 100k miles,” that was the fork that mattered for me. This is from a 1993 Mazda RX-7 in Seattle with 125,000 miles. Had a similar mess a couple years ago and that's what finally sorted it. Wrote this up on my lunch break.
CanyonGal883Community StarterCommunity StarterJan 27, 2026permalink
That's a good start, but I wouldn't stop there. If it still isn't clear on the 1993 Mazda RX-7, a specialist hour can be cheaper than another round of parts. That's where I'd start. If it doesn't change the out-the-door or the repair estimate, it's noise. If the story changes I'll post the new data.
UsedCarTuner681Community StarterCommunity StarterJan 27, 2026permalink
Owner notes beat generic advice here. On the 1993 Mazda RX-7 in Seattle, I'd fix the thing you'll notice every day before chasing spec-sheet extras. Then you'll know the next fork. On “7 — what changed after 100k miles,” that was the fork that mattered for me. This is from a 1993 Mazda RX-7 in Seattle with 125,000 miles. When does it actually happen? Climate here is different, so treat that as a local data point. Wrote this up on my lunch break.
CanyonGal883Community StarterCommunity StarterJan 27, 2026permalink
I'd keep this practical. Verify the cheap/easy branch on the 1993 Mazda RX-7 before a big repair or a big spend. That's where I'd start. Run the total, not the monthly, before you commit. Doing the boring step first on purpose.
UsedCarTuner681Community StarterCommunity StarterJan 27, 2026permalink
Agree — and I'd add this: A second data point from another 1993 Mazda RX-7 owner helps more than a generic diagnosis. That's where I'd start. Any freeze-frame data saved? I'd rather be boring and correct. This is the version I'd tell a friend.
TrackTraveler521Community StarterCommunity StarterJan 27, 2026permalink
I'd keep this practical. Verify the cheap/easy branch on the 1993 Mazda RX-7 before a big repair or a big spend. I'd do that before spending real money. Had a similar mess a couple years ago and that's what finally sorted it. This is me being the wet blanket on purpose.
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