Rennlist

Do I need to do an oil flush?

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2 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHDo I need to do an oil flush?

Leading reported evidence

Replace worn variocam tensioners and ims bearing

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

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

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 · Original poster
I have just replaced worn Variocam tensioners and IMS bearing on my 2000 996 C4 with 77,400 miles (engine out).
Original post Read captured discussion
Do I need to do an oil flush?

Frequently discussed work

Fill would be good

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
If you were not carefull with cleanliness or were working in a dirty environment while the engine was wide open then yes,a quick flush and fill would be good to do...
Original post Read captured discussion
Do I need to do an oil flush?

Read full discussion summary

Leading evidence: 'Replace worn variocam tensioners and ims bearing' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Fill would be good' (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.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 2 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Test by blackwell

Performed · outcome unconfirmed

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 · Original poster
Also had the oil tested by Blackwell before the work and it was free of metal.
Original post Read captured discussion
Do I need to do an oil flush?

Fill would be good

Suggestion or failed attempt

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
If you were not carefull with cleanliness or were working in a dirty environment while the engine was wide open then yes,a quick flush and fill would be good to do...
Original post Read captured discussion
Do I need to do an oil flush?

Use same oil so as not

Suggestion or failed attempt

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
If the flush is necessary use the same oil so as not to mix chemistry or additives....anything you use that is of a lesser quality or cost, will have residual mix and lower the quality of the final oil ...
Original post Read captured discussion
Do I need to do an oil flush?

Frequently discussed actions (4)

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

Fill would be good

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
If you were not carefull with cleanliness or were working in a dirty environment while the engine was wide open then yes,a quick flush and fill would be good to do...
Original post Read captured discussion
Do I need to do an oil flush?

Replace worn variocam tensioners and ims bearing

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 · Original poster
I have just replaced worn Variocam tensioners and IMS bearing on my 2000 996 C4 with 77,400 miles (engine out).
Original post Read captured discussion
Do I need to do an oil flush?

Test by blackwell

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 · Original poster
Also had the oil tested by Blackwell before the work and it was free of metal.
Original post Read captured discussion
Do I need to do an oil flush?

Use same oil so as not

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
If the flush is necessary use the same oil so as not to mix chemistry or additives....anything you use that is of a lesser quality or cost, will have residual mix and lower the quality of the final oil ...
Original post Read captured discussion
Do I need to do an oil flush?

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.

Rennlist: 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: 20261026T190023Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I have just replaced worn Variocam tensioners and IMS bearing on my 2000 996 C4 with 77,400 miles (engine out). The tensioners were worn quite a bit but not missing any big chunks. The old IMS looked good so not loosing any metal bits. Also had the oil tested by Blackwell before the work and it was free of metal. My question is should I do an oil flush when I get the engine back in before I fill it with my regular Liqui Moly 5W-40/ filter? If so, what type of oil and procedure?

POST 2Original post

If you were not carefull with cleanliness or were working in a dirty environment while the engine was wide open then yes,a quick flush and fill would be good to do... Bit if you were very clean in your work and environment then no, it is not necessary... If the flush is necessary use the same oil so as not to mix chemistry or additives....anything you use that is of a lesser quality or cost, will have residual mix and lower the quality of the final oil ...

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