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Is 20w-50 oil ok?

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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCHIs 20w-50 oil ok?

Leading reported evidence

Run 15w - 50w mobile 1

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i run 15W - 50W Mobile 1.

Original post Read captured discussion
Is 20w-50 oil ok?
Frequently discussed work

Recommend oil weight just

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Suggestion

i wouldn't stray that far from the recommended oil weight just on principal.

Original post Read captured discussion
Is 20w-50 oil ok?
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Leading evidence: 'Run 15w - 50w mobile 1' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Recommend oil weight just' (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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Compare 4 other evidence results

Use amsoil 20w-50

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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.

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Performed · outcome unconfirmed · Original poster

Hey guys, I just had an oil change done at an independent shop and noticed that they used amsoil 20w-50.

Original post Read captured discussion
Is 20w-50 oil ok?

Use much higher viscosity than the current 996 engine

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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.

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Performed · outcome unconfirmed

The air cooled cars used a much higher viscosity than the current 996 engine.

Original post Read captured discussion
Is 20w-50 oil ok?

Recommend oil weight just

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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.

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Suggestion

i wouldn't stray that far from the recommended oil weight just on principal.

Original post Read captured discussion
Is 20w-50 oil ok?

Replace done at an independent shop and noticed

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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.

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Suggestion · Original poster

Hey guys, I just had an oil change done at an independent shop and noticed that they used amsoil 20w-50.

Original post Read captured discussion
Is 20w-50 oil ok?
Frequently discussed actions (7)

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

Recommend oil weight just

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Suggestion

i wouldn't stray that far from the recommended oil weight just on principal.

Original post Read captured discussion
Is 20w-50 oil ok?

Replace done at an independent shop and noticed

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Suggestion · Original poster

Hey guys, I just had an oil change done at an independent shop and noticed that they used amsoil 20w-50.

Original post Read captured discussion
Is 20w-50 oil ok?

Run 15w - 50w mobile 1

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Performed · outcome unconfirmed

i run 15W - 50W Mobile 1.

Original post Read captured discussion
Is 20w-50 oil ok?

Run hard

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Suggestion

Unless you consistently starting your car in sub freezing temps, then this weight is safer for running hard.

Original post Read captured discussion
Is 20w-50 oil ok?

Use amsoil 20w-50

No successful repair reported for this finding.

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Reported fixes
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Discussions that performed work without a confirmed outcome
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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

Hey guys, I just had an oil change done at an independent shop and noticed that they used amsoil 20w-50.

Original post Read captured discussion
Is 20w-50 oil ok?

Use higher viscosity oil like

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

but, i haven't seen any proof that using a higher viscosity oil like that can damage your engine.

Original post Read captured discussion
Is 20w-50 oil ok?

Use much higher viscosity than the current 996 engine

No successful repair reported for this finding.

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Reported fixes
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Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
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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 air cooled cars used a much higher viscosity than the current 996 engine.

Original post Read captured discussion
Is 20w-50 oil ok?
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.

5 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.

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Generation: 20261027T150039Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hey guys, I just had an oil change done at an independent shop and noticed that they used amsoil 20w-50. Should I be concerned with the higher vis.? I live in San Diego so the temperature here is quite moderate. Thanks in advance.

POST 2Original post

As far as I know the Porsche "approved" oils are this: Castrol Syntec 5-50 5-40 Mobil1 0-40 Mobil1 5-40 Havoline F3 Synthetic 5-40 Valvoline Syn Power 0-40 Valvoline Syn Power 5-40 Also Mobil Super 10-40 Pennzoil/Quaker State synthetic European formula 5-40 Pennzoil Performax 5-40 This was from a TSB from April 2004. Things may have changed. I know that on the 996 engine Porsche as went to a much lighter oil because of lifter noise (and wear?). Hopefully someone like Loren will respond with the current TSB. Whether or not 20w-50 will harm your car seems to be a huge debate in the Porsche community with Porsche only saying here are approved oils. The air cooled cars used a much higher viscosity than the current 996 engine.

POST 3Original post

that really sounds kinda high for the car. i wouldn't stray that far from the recommended oil weight just on principal. but, i haven't seen any proof that using a higher viscosity oil like that can damage your engine. i would rather just trust that the porsche engineers know what they're talking about!

POST 4Original post

i run 15W - 50W Mobile 1. Unless you consistently starting your car in sub freezing temps, then this weight is safer for running hard. As a matter of fact, Porrsche recommends this weight in the manual. Actually 15W - 40W is recommended.

POST 5 / ORIGINAL POSTEROriginal post

Thanks for your help guys, I'll ask Loren over on Renntech.

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