Maintenance & Service IntervalsQuestionCommunity Starter

2018 Subaru Forester — brake fluid is old but still looks clean

QuietNerd168Community StarterJun 30, 20262018 Subaru Forester 2.5iBoston
2018 Subaru Forester 2.5i, about 62,000 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? I am in Boston. What would you check next?
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17 replies

DealGalCommunity StarterCommunity StarterJun 30, 2026permalink
Don't overfit one forum story to your car. If it still isn't clear on the 2018 Subaru Forester, a specialist hour can be cheaper than another round of parts. That's where I'd start. Do that first. I'm in no rush to be a hero on it.
TowDaily897Community StarterCommunity StarterJun 30, 2026permalink
Owner notes beat generic advice here. On the 2018 Subaru Forester in Boston, 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. Time, temperature, and whether it's in gear are the notes that actually help a shop. I'd rather look cautious in this thread than stuck later.
WrenchHunter732Community StarterCommunity StarterJul 1, 2026permalink
I'd keep this practical. Verify the cheap/easy branch on the 2018 Subaru Forester before a big repair or a big spend. I'd do that before spending real money. This is from a 2018 Subaru Forester in Boston with 62,000 miles. Did the worksheet show tax yet? Doing the boring step first on purpose.
NewCarDetailer452Community StarterCommunity StarterJul 1, 2026permalink
Not convinced that's the whole story. If it still isn't clear on the 2018 Subaru Forester, a specialist hour can be cheaper than another round of parts. I'd do that before spending real money. Learned this the expensive way on a previous car. That's coming from doing this as an owner, not a shop. I'm keeping receipts and dates in one folder.
QuietNerd168Community StarterCommunity StarterJul 1, 2026permalink
Useful. I'll report back after I verify that on my 2018 Subaru Forester. This is me being the wet blanket on purpose.
DealGalCommunity StarterCommunity StarterJul 1, 2026permalink
I'd keep this practical. Verify the cheap/easy branch on the 2018 Subaru Forester before a big repair or a big spend. That's where I'd start. Do that first. Doing the boring step first on purpose.
NewCarDetailer452Community StarterCommunity StarterJul 2, 2026permalink
Not convinced that's the whole story. Verify the cheap/easy branch on the 2018 Subaru Forester before a big repair or a big spend. Then you'll know the next fork. This is from a 2018 Subaru Forester in Boston with 62,000 miles. Had a similar mess a couple years ago and that's what finally sorted it. Doing the boring step first on purpose.
QuietRoadie94Community StarterCommunity StarterJul 2, 2026permalink
I hear you, though I'd still want a second check. A second data point from another 2018 Subaru Forester owner helps more than a generic diagnosis. Then you'll know the next fork. This is from a 2018 Subaru Forester in Boston with 62,000 miles. Stop there until you know. If this is nothing, great. I want that in data.
RustBeltDaily757Community StarterCommunity StarterJul 1, 2026permalink
Write down what you already tried. A second data point from another 2018 Subaru Forester owner helps more than a generic diagnosis. I'd do that before spending real money. If they can't show the line item, I assume it's hiding. If this is nothing, great. I want that in data.
CleanCollector835Community StarterCommunity StarterJul 1, 2026permalink
Don't overfit one forum story to your car. If it still isn't clear on the 2018 Subaru Forester, a specialist hour can be cheaper than another round of parts. That's where I'd start. Have you gotten a second quote in writing? If the story changes I'll post the new data.
QuietNerd168Community StarterCommunity StarterJul 1, 2026permalink
I parked the 2018 Subaru Forester and wrote down what I already tested so I'm not repeating myself. I'd rather look cautious in this thread than stuck later.
RustBeltDaily757Community StarterCommunity StarterJul 2, 2026permalink
Yes, with one caveat: A second data point from another 2018 Subaru Forester owner helps more than a generic diagnosis. That's where I'd start. This is from a 2018 Subaru Forester in Boston with 62,000 miles. Verbal 'we'll take care of it' is not a plan. I'd rather be boring and correct. If this is nothing, great. I want that in data.
TrailWrench67Community StarterCommunity StarterJul 1, 2026permalink
Owner notes beat generic advice here. On the 2018 Subaru Forester in Boston, 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. That's the sequence I'd use. Wrote this up on my lunch break.
TrailWrench67Community StarterCommunity StarterJul 2, 2026permalink
I'd keep this practical. Verify the cheap/easy branch on the 2018 Subaru Forester before a big repair or a big spend. I'd do that before spending real money. No need to make it theatrical. I'll update if anything new shows up.
DealGalCommunity StarterCommunity StarterJul 2, 2026permalink
Write down what you already tried. A second data point from another 2018 Subaru Forester owner helps more than a generic diagnosis. That's where I'd start. This is from a 2018 Subaru Forester in Boston with 62,000 miles. Stop there until you know. Not trying to scare you — just skip the expensive first guess. If this is nothing, great. I want that in data.
TrailWrench67Community StarterCommunity StarterJul 2, 2026permalink
Don't overfit one forum story to your car. If it still isn't clear on the 2018 Subaru Forester, a specialist hour can be cheaper than another round of parts. Then you'll know the next fork. This is from a 2018 Subaru Forester in Boston with 62,000 miles. No need to make it theatrical. I'm in no rush to be a hero on it.
RustBeltDaily757Community StarterCommunity StarterJul 2, 2026permalink
Owner notes beat generic advice here. On the 2018 Subaru Forester in Boston, I'd fix the thing you'll notice every day before chasing spec-sheet extras. That's where I'd start. On “brake fluid is old but still looks,” that was the fork that mattered for me. If they can't show the line item, I assume it's hiding. I'd rather look cautious in this thread than stuck later.
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