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Shell Helix Ultra oil

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHShell Helix Ultra oil

Leading reported evidence

Fill with

Performed · outcome unconfirmed

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Unsuccessful attempts: 1
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Discussions that performed work without a confirmed outcome: 1

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Performed · outcome unconfirmed
The oil filler flap shows the car was filled with
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Shell Helix Ultra oil

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Leading evidence: 'Fill with' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Fill with' (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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Use hell

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Suggestion
Does anyone see any problem with using the hell to top up the oil.
Original post Read captured discussion
Shell Helix Ultra oil

Frequently discussed actions (2)

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Fill with

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
The oil filler flap shows the car was filled with
Original post Read captured discussion
Shell Helix Ultra oil

Use hell

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
Does anyone see any problem with using the hell to top up the oil.
Original post Read captured discussion
Shell Helix Ultra oil

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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.

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

Planet-9: 1 discussions

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Generation: 20261027T154520Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

I searched, I promise. I have some 5-40 synthetic Shell Helix Ultra oil left over from my 430 ownership experience. My CS owner's manual says any synthetic "approved by Porsche " is okay to use. The oil filler flap shows the car was filled with Mobil 1 . Does anyone see any problem with using the hell to top up the oil. Among the reasons I ask is that Ferrari, in the event of an engine failure, will analyze the oil. The owner's manual intimates that if non Shell Helix oil was found to have been added, in any amount, the warranty coverage would be in question. Crazy.

POST 2Original post

The Cayman Documents/tech service bulletins section has a list of all approved oils. See http://www.planet-9.com/downloads.php?do=file&id=78 I might have missed it but don't see Shell oil there.

POST 3Original post

It's there - just says Helix Ultra though.

POST 4Original post

It is on there--thank you very much.

POST 5Original post

yes , Shell Helix is an approved oil . by the way scotty , i am so jealous it is sickening ! the 430 has to be my favorite car of all time .

POST 6Original post

no oil mixing

POST 7Original post

There is no argument that the safest route is to not mix. I have heard passionate defenses of both sides of this. I may try to see what Porsche says.

POST 8Original post

Is the effort even worth it just to use up a quart of oil sitting around? Mobil1 is only going to be a couple of bucks for that top up quart. Then you have 100% peace of mind.

POST 9Original post

Think the argument has always been not to mix different types of oil, so a mineral with a synthetic or a semi with a full synthetic. Guess there shouldn't be a problem putting 2 fully synthetic oils together (M1 is 0/40 so slightly different viscosity). Having said that I would try to keep it all single source, no real reason why though.

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