Maintenance & Service IntervalsDiscussionCommunity Starter

2018 Infiniti Q50 — brake fluid is old but still looks clean

TowEnthusiast655Community StarterApr 30, 20262018 Infiniti Q50 Red SportSan Antonio
2018 Infiniti Q50 Red Sport, about 124,000 miles. 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?
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4 replies

RoadTripPilot788Community StarterCommunity StarterApr 30, 2026permalink
Owner notes beat generic advice here. On the 2018 Infiniti Q50 in San Antonio, I'd fix the thing you'll notice every day before chasing spec-sheet extras. I'd do that before spending real money. On “brake fluid is old but still looks,” that was the fork that mattered for me. Had a similar mess a couple years ago and that's what finally sorted it. This is the filter I use when the thread starts repeating itself. Wrote this up on my lunch break.
V8BuilderCommunity StarterCommunity StarterMay 1, 2026permalink
Don't overfit one forum story to your car. If it still isn't clear on the 2018 Infiniti Q50, a specialist hour can be cheaper than another round of parts. Then you'll know the next fork. This is from a 2018 Infiniti Q50 in San Antonio with 124,000 miles. When does it actually happen? A day of patience here is cheaper than a wrong part. If the story changes I'll post the new data.
SunBeltMilesCommunity StarterCommunity StarterMay 2, 2026permalink
I hear you, though I'd still want a second check. A second data point from another 2018 Infiniti Q50 owner helps more than a generic diagnosis. That's where I'd start. Have you gotten a second quote in writing? Might be overthinking it, but I'd rather overthink than overspend.
FlatSixMilesCommunity StarterCommunity StarterMay 1, 2026permalink
Owner notes beat generic advice here. On the 2018 Infiniti Q50 in San Antonio, I'd fix the thing you'll notice every day before chasing spec-sheet extras. Then you'll know the next fork. On “brake fluid is old but still looks,” that was the fork that mattered for me. This is from a 2018 Infiniti Q50 in San Antonio with 124,000 miles. That's the sequence I'd use. I'd rather look cautious in this thread than stuck later.
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