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Aos - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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YOUR RESEARCHAos - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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Replace aos yearly as a maintenance item

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Unsuccessful attempts: 1
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Suggestion
I replace the AOS yearly as a maintenance item to avoid any problems on the track.
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Aos - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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Leading evidence: 'Replace aos yearly as a maintenance item' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace aos yearly as a maintenance item' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Replace aos yearly as a maintenance item

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
I replace the AOS yearly as a maintenance item to avoid any problems on the track.
Original post Read captured discussion
Aos - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

6 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

986Forum: 1 discussions

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Generation: 20261027T003124Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I just did my first DE in my 2001 986S with 65k miles with Michelin PS4's. First session went fine, then on the second I started to get white smoke on one of the turns, eventually, I was black flagged. Mechanic on site diagnosed it as the AOS. I primarily do autocross and am planning on doing a few DE's every year. Is the standard AOS sufficient or should I bite the bullet and get the motorsport model?

POST 2Original post

The AOS was failing before the DE. The stock AOS is fine. The white smoke came because your intake had pooled oil in it and the centrifugal forces caused it to splash into the cylinders.

POST 3Original post

Well if you have $700 burning a whole in your pocket, go for it. You have to do mods to make it work.

POST 4Original post

Or just run it half a quart low from the start.

POST 5Original post

The problem with the motorsports AOS is cost ($742 from Pelican) plus the modifications that are required to install it. With the stock AOS selling for $80 - $120, its cheaper to just replace them as often as needed. I replace the AOS yearly as a maintenance item to avoid any problems on the track.

POST 6Original post

For reference, here is a link to a page that describes the mod's required to install the Motorsports AOS: Porsche MotorSports Oil Separator - Articles

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