fullymatted.
Back to search
Porsche Club GB

Tyre Pressures

Add to repair workspace
Open repair workspace
Original source
5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHTyre Pressures

Leading reported evidence

Check & re-inflate tyres

Suggestion or failed attempt

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 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

In the lower temperatures we have been experiencing recently, I think it would be wise to check & re-inflate tyres to the correct levels (when I checked mine a few days ago they were a few bar down on normal).

Original post Read captured discussion
Tyre Pressures
Read full discussion summary

Leading evidence: 'Check & re-inflate tyres' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check & re-inflate tyres' (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.

Read captured replies

1 matching discussions · 5 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Check pressures

Suggestion or failed attempt

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 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 · Original poster

I normally check pressures when cold, so would be interested to understand likely variance in pressure between cold & hot tyres.

Original post Read captured discussion
Tyre Pressures

Set ups

Suggestion or failed attempt

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 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

I guess there are tolerences to personal preferences, tyres and maybe even suspension set ups ...

Original post Read captured discussion
Tyre Pressures
Frequently discussed actions (3)

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

Check & re-inflate tyres

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

In the lower temperatures we have been experiencing recently, I think it would be wise to check & re-inflate tyres to the correct levels (when I checked mine a few days ago they were a few bar down on normal).

Original post Read captured discussion
Tyre Pressures

Check pressures

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 · Original poster

I normally check pressures when cold, so would be interested to understand likely variance in pressure between cold & hot tyres.

Original post Read captured discussion
Tyre Pressures

Set ups

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

I guess there are tolerences to personal preferences, tyres and maybe even suspension set ups ...

Original post Read captured discussion
Tyre Pressures
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.

  • Porsche Club GB: 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: 20261027T084359Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I'm sure that this has been asked numerous times previously, so apologies. What is the correct tyre pressure for 235/40/18 & 285/30/18. I normally check pressures when cold, so would be interested to understand likely variance in pressure between cold & hot tyres. Thanks for your help.

POST 2Original post

36 front 44 rear iirc. Some say to drop these pressures a little as the above are really best for tackling autobahns at xxx mph. Dropping mine has resulted in a more forgiving ride, though I haven't dropped them as low as some people. Have a play with your pressures and see what suits you. Have noticed that my rears now wear evenly across the tyre with the lower pressure. In this cold weather the pressures will read lower. HTH.

POST 3Original post

When I had my 996 with those tyre sizes, I ran them at 32/40 which seemed to provide a good compromise between ride comfort and handling. Terry

POST 4Original post

I believed they were 36 & 42 which is what I run. I guess there are tolerences to personal preferences, tyres and maybe even suspension set ups ... Which leads me on to a thought Baptistan mentioned about the weather. When tracking your car, its recommened to lower the pressures as a good track session will increase the pressures above normal temperature. Makes the car very skiddy if you dont. However, my question is..... In the lower temperatures we have been experiencing recently, I think it would be wise to check & re-inflate tyres to the correct levels (when I checked mine a few days ago they were a few bar down on normal). Does that make sense?

POST 5 / ORIGINAL POSTEROriginal post

Thanks for the responses. Much appreciated.

This is a source reference. Confirm exact model applicability in the original material.