13 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHC4S Oil Pressure
Leading reported evidence
Run millers 10w50 nano
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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1
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Performed · outcome unconfirmed
Of course, it depends upon what viscosity oil you're using, I'm running Millers 10w50 Nano.
Leading evidence: 'Run millers 10w50 nano' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check paperwork' (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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Performed · outcome unconfirmed
Of course, it depends upon what viscosity oil you're using, I'm running Millers 10w50 Nano.
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Suggestion · Original poster
I'll check the paperwork, but plannng on 0-W40 when I change
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Suggestion
It's easy enough to change with a 19mm crows foot on a UJ & extension from below.
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Suggestion
Mine did just the same, I would have to stop and switch off to "reset" it.
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.
13 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: 20261027T033922Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi all,
New here - I'm sure there's a thread somewhere already but haven't found it...
My C4S seems to be running high oil pressure compared to what I read before and what my mates 3.4 c2 runs at...
Once warm it idles at 2.5, seems to cruise between 3.5 and 4.5 depending on speed.. any throttle input and it's at 5...
Seems fine but that all seems about 1.0 mark high in all scenarios... anything to worry about?
Thanks!
Martin
My '98 C2 does the same, sounds about right to me. 5 bar oil pressure above about 1800rpm or so.
The only time it's dropped down to below 2 bar at idle is when it's got exceptionally hot after a long soak in traffic on a very hot day.
Of course, it depends upon what viscosity oil you're using, I'm running Millers 10w50 Nano.
As I say, mine started like that at quickly got worse.
It's easy enough to change with a 19mm crows foot on a UJ & extension from below. Just need to take the heat shield off the coil packs and unplug wires from the top. 2 spades of different sizes so although you can't really see them that well they only go back one way.
And now I have another job on the list - reading 1.5 bar with ignition only :roll:
I need to stop reading this forum - I didn't have this problem on my Boxster :wink:
