25 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHMobil 1 European car formula 0W40
Leading reported evidence
Replace since the sticker was placed
Performed · outcome unconfirmed
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 performed work without a confirmed outcome
1
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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 formulation of Mobil 1 has changed since the sticker was placed.
Leading evidence: 'Replace since the sticker was placed' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace oil and i bought m1 0w40' (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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Discussions that performed work without a confirmed outcome
1
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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
Dealer serviced my car this week down here in Aus and used Mobil1 0w40
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
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Suggestion
I have to change my oil and I bought m1 0w40 and after looking again at the manual I changed it to M1 15w50.
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Suggestion
For cold climates the bore scoring issue/lubrication issue may change the recommendation for your climate.
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Discussions that contain suggestions
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Test much better than higher zinc oils of similar weight
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.
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Suggestion
Rat in that thread specifically mentions zinc is not necessary for good wear protection, as obviously whatever other additives the motorcraft is using with only 600ish zinc is testing much better than higher zinc oils of similar weight.
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
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Suggestion
Rat in that thread specifically mentions zinc is not necessary for good wear protection, as obviously whatever other additives the motorcraft is using with only 600ish zinc is testing much better than higher zinc oils of similar weight.
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.
25 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: 20261026T200546Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
that is what Porsche recommends. Others have different opinions
do a search for Porsche approved oil and you should find a list
It depends on what Kool-Aid you drink to decide on what oil to use
Thanks guys in my owners manual that weight is not listed as approved. That is why I had asked. I "thought" I had read somewhere there was an amendment.
The formulation of Mobil 1 has changed since the sticker was placed. See BITOG
For cold climates the bore scoring issue/lubrication issue may change the recommendation for your climate.
Much discussion on both issues previous Posts.
The specific version the OP asks about ( 0w-40 -not -30) is interesting because it has a beneficial higher amount of ZDDP and Phosphorus.
540Rat is a legend on the geek side of theses issues:
http://speedtalk.com/forum/viewtopic.php?f=1&t=35120
It is a bit difficult to make a wise choice . The manual mentions 15w50 as a choice above 50 degrees. I have to change my oil and I bought m1 0w40 and after looking again at the manual I changed it to M1 15w50. Now saying the manual is obsolete is quite confusing. Should I return to 0w40 here in Florida???
At your next oil change, switch to Mobil 5W50. This is Porsche A40 approved. In the meantime, if your car consumes any oil, top off with M 0W40 to thin down your current 15W50.
From that thread it looks like the motorcraft synthetic 5250 is rated the highest for the heavier weight oils, but it's not on the porsche approved list.
Rat in that thread specifically mentions zinc is not necessary for good wear protection, as obviously whatever other additives the motorcraft is using with only 600ish zinc is testing much better than higher zinc oils of similar weight.
Interesting.
Obsolete doesn't mean wrong. I just go with the current list, because that's easier for me. If sticking with the manual is easier for you, I see no problem with that.
This is a source reference. Confirm exact model applicability in the original material.
