Planet-9

Liqui Moly MOS2 oil treatment on high-mileage 997?

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2 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis

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Discussion summary

YOUR RESEARCHLiqui Moly MOS2 oil treatment on high-mileage 997?

Leading reported evidence

Run oil temp peak drop

Performed · outcome unconfirmed

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Unsuccessful attempts: 1
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome: 1

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Performed · outcome unconfirmed
I use it and noticed my running oil temp peak drop.
Original post Read captured discussion
Liqui Moly MOS2 oil treatment on high-mileage 997?

Frequently discussed work

Replace now

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Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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

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Suggestion
Generally need to add a bit of oil a couple times between changes now.
Original post Read captured discussion
Liqui Moly MOS2 oil treatment on high-mileage 997?

Read full discussion summary

Leading evidence: 'Run oil temp peak drop' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace now' (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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1 matching discussions · 2 captured posts examined · 1 partial discussions

Compare 2 other evidence results

Replace now

Suggestion or failed attempt

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Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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

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Suggestion
Generally need to add a bit of oil a couple times between changes now.
Original post Read captured discussion
Liqui Moly MOS2 oil treatment on high-mileage 997?

Use high-quality oil treatments like liqui moly mos2 (

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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Discussions that contain suggestions: 1

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

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Suggestion
Wondering whether anyone has had a good or bad experience using high-quality oil treatments like Liqui Moly MOS2 (
Original post Read captured discussion
Liqui Moly MOS2 oil treatment on high-mileage 997?

Frequently discussed actions (3)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Replace now

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
Generally need to add a bit of oil a couple times between changes now.
Original post Read captured discussion
Liqui Moly MOS2 oil treatment on high-mileage 997?

Run oil temp peak drop

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 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.

Performed · outcome unconfirmed
I use it and noticed my running oil temp peak drop.
Original post Read captured discussion
Liqui Moly MOS2 oil treatment on high-mileage 997?

Use high-quality oil treatments like liqui moly mos2 (

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
Wondering whether anyone has had a good or bad experience using high-quality oil treatments like Liqui Moly MOS2 (
Original post Read captured discussion
Liqui Moly MOS2 oil treatment on high-mileage 997?

Coverage and how to read this overview

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.

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

Planet-9: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261027T042512Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

Wondering whether anyone has had a good or bad experience using high-quality oil treatments like Liqui Moly MOS2 ( Amazon.com: Liqui Moly 2009 Anti-Friction Oil Treatment - 300 ml: Automotive ) on higher mileage 911s. I've got a 2006 997 C4S with 112,000 miles. 2nd owner. Generally need to add a bit of oil a couple times between changes now. Wondering whether stuff like this can be useful or just pollutes the system. Open to all opinions, but after the first guy who says "snake oil," if you agree, just like that first guy's comment, don't add a duplicate.

POST 2Original post

I use it and noticed my running oil temp peak drop. I definitely noticed PDK improvement with Liqui Molly.

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