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911uk

Changing oil manufacturers, full flush?

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

Discussion summary

YOUR RESEARCHChanging oil manufacturers, full flush?

Leading reported evidence

Replace back

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

Maybe change back to Mobil 1 after 6k?

Original post Read captured discussion
Changing oil manufacturers, full flush?
Read full discussion summary

Leading evidence: 'Replace back' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace back' (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 · 8 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Replace brand - mobil do the same spec oil

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

Stuart, any reason you are changing brand - mobil do the same spec oil?

Original post Read captured discussion
Changing oil manufacturers, full flush?

Replace from mobil-1 0w-40

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

Thinking of changing from Mobil-1 0W-40 to Silkolene Pro-S 5W-40, do I need to do some kind of full flush or simply drain and replace including filter?

Original post Read captured discussion
Changing oil manufacturers, full flush?

Replace including filter

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

Thinking of changing from Mobil-1 0W-40 to Silkolene Pro-S 5W-40, do I need to do some kind of full flush or simply drain and replace including filter?

Original post Read captured discussion
Changing oil manufacturers, full flush?

Replace oil frequently

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

drain and filter should be fine as you are changing the oil frequently

Original post Read captured discussion
Changing oil manufacturers, full flush?
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 back

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

Maybe change back to Mobil 1 after 6k?

Original post Read captured discussion
Changing oil manufacturers, full flush?

Replace brand - mobil do the same spec oil

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

Stuart, any reason you are changing brand - mobil do the same spec oil?

Original post Read captured discussion
Changing oil manufacturers, full flush?

Replace from mobil-1 0w-40

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

Thinking of changing from Mobil-1 0W-40 to Silkolene Pro-S 5W-40, do I need to do some kind of full flush or simply drain and replace including filter?

Original post Read captured discussion
Changing oil manufacturers, full flush?

Replace including filter

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

Thinking of changing from Mobil-1 0W-40 to Silkolene Pro-S 5W-40, do I need to do some kind of full flush or simply drain and replace including filter?

Original post Read captured discussion
Changing oil manufacturers, full flush?

Replace oil frequently

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

drain and filter should be fine as you are changing the oil frequently

Original post Read captured discussion
Changing oil manufacturers, full 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.

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

  • 911uk: 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: 20261026T124918Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Thinking of changing from Mobil-1 0W-40 to Silkolene Pro-S 5W-40, do I need to do some kind of full flush or simply drain and replace including filter? Thanks :thumb:

POST 2Original post

drain and filter should be fine as you are changing the oil frequently do more engines still need an engine flush ? :dont know: although I always thought an oil flush was only needed if the oil was solidifying

POST 4Original post

Stuart, any reason you are changing brand - mobil do the same spec oil? - Simon

POST 5 / ORIGINAL POSTEROriginal post

Been reading and researching and seems Silkolene might be a better product, also Mobil only do the Synth S at 5W-40 :dont know:

POST 6Original post

shell helix ultra Just had a major service from porscheshop and it came back with shell helix ultra 5w-40. Was expecting Mobil 1, but didn't ask. Maybe change back to Mobil 1 after 6k? Jeremy

POST 7Original post

Re: shell helix ultra Helix 5x40 Ultra has the Porsche approval. Great oil for cars over 20k miles.

POST 8Original post

Mine came back from Autostrasse last year following a service and the invoice said 9 litres of Esso Ultron.... I ran it for just under 6k (12 months had just about elapsed) then had the annual service/inspection done and requested an oil/filter change It now has Mobil back in.

This is a source reference. Confirm exact model applicability in the original material.