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Oil for 993 C4 - Page 1 - Porsche General - PistonHeads UK

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHOil for 993 C4 - Page 1 - Porsche General - PistonHeads UK

Leading reported evidence

Use semi-synthetic 10w-40 or 15w-50 and save money

Suggestion or failed attempt

No successful repair reported for this finding.

0
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 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 have used shell, esso and mobil in the past with good results, and if you do less than 6000 miles per year you could happily use a semi-synthetic 10W-40 or 15W-50 and save money.
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Oil for 993 C4 - Page 1 - Porsche General - PistonHeads UK

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Leading evidence: 'Use semi-synthetic 10w-40 or 15w-50 and save money' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use semi-synthetic 10w-40 or 15w-50 and save money' (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 · 4 captured posts examined · 1 partial discussions

Compare 1 other evidence results

Use shell, esso and mobil in the past

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
I have used shell, esso and mobil in the past with good results, and if you do less than 6000 miles per year you could happily use a semi-synthetic 10W-40 or 15W-50 and save money.
Original post Read captured discussion
Oil for 993 C4 - Page 1 - Porsche General - PistonHeads UK

Frequently discussed actions (2)

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

Use semi-synthetic 10w-40 or 15w-50 and save money

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 have used shell, esso and mobil in the past with good results, and if you do less than 6000 miles per year you could happily use a semi-synthetic 10W-40 or 15W-50 and save money.
Original post Read captured discussion
Oil for 993 C4 - Page 1 - Porsche General - PistonHeads UK

Use shell, esso and mobil in the past

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 have used shell, esso and mobil in the past with good results, and if you do less than 6000 miles per year you could happily use a semi-synthetic 10W-40 or 15W-50 and save money.
Original post Read captured discussion
Oil for 993 C4 - Page 1 - Porsche General - PistonHeads UK

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.

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

PistonHeads: 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: 20261026T203514Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

I'm still a 993 newbie but the only oil I've seen Porsche recommend is Mobil 1.

POST 2Original post

Castrol RS is the prefered oil of most of the Uk specialists, not as stupidly thin as mobil 1 but just as good= fully synth etc etc.

POST 3Original post

For anything pre 98 avoid any of the 0W weight oils. I have used shell, esso and mobil in the past with good results, and if you do less than 6000 miles per year you could happily use a semi-synthetic 10W-40 or 15W-50 and save money.

POST 4 / ORIGINAL POSTEROriginal post

What is the majority opinion on the best oil for my C4. Reason I ask is thet with my previous Skyline R34 (which was obviously turbo'd) this was a VERY important factor. Possibly not so with the 993 , so any views welcomed.

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