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Automatic transmission service interval

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3 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHAutomatic transmission service interval

Leading reported evidence

Replace tranny fluid in one transmission, a manual

Performed · outcome unconfirmed

No successful repair reported for this finding.

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Reported fixes
0
Unsuccessful attempts
1
Discussions
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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

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 changed the tranny fluid in one transmission, a manual.

Original post Read captured discussion
Automatic transmission service interval
Frequently discussed work

Replace now

No successful repair reported for this finding.

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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.

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

Suggestion

Why change now with 100K miles on the tranny?

Original post Read captured discussion
Automatic transmission service interval
Read full discussion summary

Leading evidence: 'Replace tranny fluid in one transmission, a manual' (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.

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

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1 matching discussions · 3 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Replace now

Suggestion or failed attempt

No successful repair reported for this finding.

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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 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

Why change now with 100K miles on the tranny?

Original post Read captured discussion
Automatic transmission service interval

Replace transmission filter and fluid

Suggestion or failed attempt

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 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 · Original poster

With other german cars I have owned the 100000 mile mark seems to be when you change the transmission filter and fluid.

Original post Read captured discussion
Automatic transmission service interval

Use porsche fluid

Suggestion or failed attempt

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 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 · Original poster

Should I only use Porsche Fluid from the dealer or some other brand?

Original post Read captured discussion
Automatic transmission service interval

Use porsche stuff

Suggestion or failed attempt

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 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 do it yourself, use the Porsche stuff.

Original post Read captured discussion
Automatic transmission service interval
Frequently discussed actions (5)

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

Why change now with 100K miles on the tranny?

Original post Read captured discussion
Automatic transmission service interval

Replace tranny fluid in one transmission, a manual

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 changed the tranny fluid in one transmission, a manual.

Original post Read captured discussion
Automatic transmission service interval

Replace transmission filter and fluid

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 · Original poster

With other german cars I have owned the 100000 mile mark seems to be when you change the transmission filter and fluid.

Original post Read captured discussion
Automatic transmission service interval

Use porsche fluid

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 · Original poster

Should I only use Porsche Fluid from the dealer or some other brand?

Original post Read captured discussion
Automatic transmission service interval

Use porsche stuff

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 do it yourself, use the Porsche stuff.

Original post Read captured discussion
Automatic transmission service interval
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.

3 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: 20261026T212127Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

My wife and I have a 2000 Carrera Cabriolet. Today she just hit 100000 miles. We have owned the car since 82000 miles. With other german cars I have owned the 100000 mile mark seems to be when you change the transmission filter and fluid. I have several questions for this group. 1. Should I only use Porsche Fluid from the dealer or some other brand? 2. Porsche website says that I don't have to replace the fluid or filter and the differential fluid until 120000 miles. What experience do people here have? 3. Do you really have to pull the side cover bolts off the differential on an automatic to drain it? Thank you for the help. I want to keep her a happy 911 for many years to come.

POST 3Original post

Tip service interval is in the owners manual. I can't recall if it is 60K miles or 90K miles. It may even be 120K miles. When you go pick up the fluid from the dealer parts department have the parts manager look up the service interval for your car. If you do it yourself, use the Porsche stuff. Why change now with 100K miles on the tranny? If you thought the Porsche fluid sub-par you should have changed it long before now. I believe the drain technique for the Tip diff is to siphon the fluid out the drain hole. The unit should be warm. 0.7 to 0.9 quarts of fluid should be removed. 0.9 quarts must be put back in. Slowly. I do not off hand have any idea of what the Tip fluid/filter service involves. There are I am sure DIY articles around. Whether they are any good I have no idea. For tranny/diff fluid services I let the dealer service department do this. I changed the tranny fluid in one transmission, a manual. All went reasonably well it is just a nasty mess to do. Never again. The Tip requires some special steps to do right. If you are going to do it wrong you'd better off not doing it at all. While the Tip would eventually succumb at least it would take longer.

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