911uk

Oil pressure doesn't go up to 5 when warmed up.

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3 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHOil pressure doesn't go up to 5 when warmed up.

Leading reported evidence

Use oil pressure gauge as a way

Performed · outcome unconfirmed

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 performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Performed · outcome unconfirmed
I use the oil pressure gauge as a way to tell when the car is up to temp.
Original post Read captured discussion
Oil pressure doesn't go up to 5 when warmed up.

Frequently discussed work

Use car properly

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
For me, it is not until it drops so the oil pressure roughly matches the rpm that I start to use the car properly.
Original post Read captured discussion
Oil pressure doesn't go up to 5 when warmed up.

Read full discussion summary

Leading evidence: 'Use oil pressure gauge as a way' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use car properly' (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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1 matching discussions · 3 captured posts examined · 0 partial discussions

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Use car properly

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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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
For me, it is not until it drops so the oil pressure roughly matches the rpm that I start to use the car properly.
Original post Read captured discussion
Oil pressure doesn't go up to 5 when warmed up.

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 car properly

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
For me, it is not until it drops so the oil pressure roughly matches the rpm that I start to use the car properly.
Original post Read captured discussion
Oil pressure doesn't go up to 5 when warmed up.

Use oil pressure gauge as a way

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

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
I use the oil pressure gauge as a way to tell when the car is up to temp.
Original post Read captured discussion
Oil pressure doesn't go up to 5 when warmed up.

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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.

3 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: 20261026T165820Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi All, Took my 2001 C4 out for a quick pootle earlier today and noticed that oil pressure was at 5 to start with, as I'd expect, but after 15mins (usual time I wait before going over 3k revs) it never went above 4, even when driving at high revs, and when idling it was just over 1. Still drove perfectly but is this something that I should be worried about? --UPDATE-- Took the car out today on this quintessentially British summers day (it's 15oC!!!!) and noticed that as the day was much cooler the oil pressure was about 1.5 so I the low pressure yesterday may be temp based. Would fitting a low temp thermostat resolve this issue?

POST 2Original post

I use the oil pressure gauge as a way to tell when the car is up to temp. For me, it is not until it drops so the oil pressure roughly matches the rpm that I start to use the car properly. Sounds like all is working well and as expected on your car to be honest.

POST 3 / ORIGINAL POSTEROriginal post

Thanks @gizlaroc for the peace of mind :thumbs:

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