11 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH2.7 Cayman- Oil capacity Pre start read outs - Page 1 - Boxster/Cayman - PistonHeads UK
Leading reported evidence
Use 1l in 5000 miles in my 3.4 cayman
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
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've used 1L in 5000 miles in my 3.4 Cayman but my dad has a leggy 997 than uses that much in a fortnight!
2.7 Cayman- Oil capacity Pre start read outs - Page 1 - Boxster/Cayman - PistonHeads UK
Frequently discussed work
Check electronic gauge
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
According to the manual the capacity is 7.75 litres with an oil & filter change but when I fill mine to this level,take the car for a run,then leave it overnight on a level surface and check the electronic gauge again before starting it's registering only half way up the gauge,I have to add another 0.5 litres to get the max reading on the gauge taking the total fill too 8.25 litres which is over the stated capacity which worries me.
2.7 Cayman- Oil capacity Pre start read outs - Page 1 - Boxster/Cayman - PistonHeads UK
Suggestion
According to the manual the capacity is 7.75 litres with an oil & filter change but when I fill mine to this level,take the car for a run,then leave it overnight on a level surface and check the electronic gauge again before starting it's registering only half way up the gauge,I have to add another 0.5 litres to get the max reading on the gauge taking the total fill too 8.25 litres which is over the stated capacity which worries me.
2.7 Cayman- Oil capacity Pre start read outs - Page 1 - Boxster/Cayman - PistonHeads UK
Read full discussion summary
Leading evidence: 'Use 1l in 5000 miles in my 3.4 cayman' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check electronic gauge' (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.
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
According to the manual the capacity is 7.75 litres with an oil & filter change but when I fill mine to this level,take the car for a run,then leave it overnight on a level surface and check the electronic gauge again before starting it's registering only half way up the gauge,I have to add another 0.5 litres to get the max reading on the gauge taking the total fill too 8.25 litres which is over the stated capacity which worries me.
2.7 Cayman- Oil capacity Pre start read outs - Page 1 - Boxster/Cayman - PistonHeads UK
Suggestion
According to the manual the capacity is 7.75 litres with an oil & filter change but when I fill mine to this level,take the car for a run,then leave it overnight on a level surface and check the electronic gauge again before starting it's registering only half way up the gauge,I have to add another 0.5 litres to get the max reading on the gauge taking the total fill too 8.25 litres which is over the stated capacity which worries me.
2.7 Cayman- Oil capacity Pre start read outs - Page 1 - Boxster/Cayman - PistonHeads UK
Check level and the level should be at the max
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
Then the engine is started and warmed up enough to check the level and the level should be at the max.
2.7 Cayman- Oil capacity Pre start read outs - Page 1 - Boxster/Cayman - PistonHeads UK
Check level cold
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
When you check the oil level after the car has sat overnight you are checking the level cold.
2.7 Cayman- Oil capacity Pre start read outs - Page 1 - Boxster/Cayman - PistonHeads UK
Check oil in my 2.7l boxster cold
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
By my observation from checking the oil in my 2.7l Boxster cold and then hot parked in the same location the difference is two bars.
2.7 Cayman- Oil capacity Pre start read outs - Page 1 - Boxster/Cayman - PistonHeads UK
Frequently discussed actions (10)
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Check electronic gauge
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
According to the manual the capacity is 7.75 litres with an oil & filter change but when I fill mine to this level,take the car for a run,then leave it overnight on a level surface and check the electronic gauge again before starting it's registering only half way up the gauge,I have to add another 0.5 litres to get the max reading on the gauge taking the total fill too 8.25 litres which is over the stated capacity which worries me.
2.7 Cayman- Oil capacity Pre start read outs - Page 1 - Boxster/Cayman - PistonHeads UK
Suggestion
According to the manual the capacity is 7.75 litres with an oil & filter change but when I fill mine to this level,take the car for a run,then leave it overnight on a level surface and check the electronic gauge again before starting it's registering only half way up the gauge,I have to add another 0.5 litres to get the max reading on the gauge taking the total fill too 8.25 litres which is over the stated capacity which worries me.
2.7 Cayman- Oil capacity Pre start read outs - Page 1 - Boxster/Cayman - PistonHeads UK
Fill too 8.25 litres
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
According to the manual the capacity is 7.75 litres with an oil & filter change but when I fill mine to this level,take the car for a run,then leave it overnight on a level surface and check the electronic gauge again before starting it's registering only half way up the gauge,I have to add another 0.5 litres to get the max reading on the gauge taking the total fill too 8.25 litres which is over the stated capacity which worries me.
2.7 Cayman- Oil capacity Pre start read outs - Page 1 - Boxster/Cayman - PistonHeads UK
Suggestion
According to the manual the capacity is 7.75 litres with an oil & filter change but when I fill mine to this level,take the car for a run,then leave it overnight on a level surface and check the electronic gauge again before starting it's registering only half way up the gauge,I have to add another 0.5 litres to get the max reading on the gauge taking the total fill too 8.25 litres which is over the stated capacity which worries me.
2.7 Cayman- Oil capacity Pre start read outs - Page 1 - Boxster/Cayman - PistonHeads UK
Replace but
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
According to the manual the capacity is 7.75 litres with an oil & filter change but when I fill mine to this level,take the car for a run,then leave it overnight on a level surface and check the electronic gauge again before starting it's registering only half way up the gauge,I have to add another 0.5 litres to get the max reading on the gauge taking the total fill too 8.25 litres which is over the stated capacity which worries me.
2.7 Cayman- Oil capacity Pre start read outs - Page 1 - Boxster/Cayman - PistonHeads UK
Suggestion
According to the manual the capacity is 7.75 litres with an oil & filter change but when I fill mine to this level,take the car for a run,then leave it overnight on a level surface and check the electronic gauge again before starting it's registering only half way up the gauge,I have to add another 0.5 litres to get the max reading on the gauge taking the total fill too 8.25 litres which is over the stated capacity which worries me.
2.7 Cayman- Oil capacity Pre start read outs - Page 1 - Boxster/Cayman - PistonHeads UK
Replace oil and filter myself
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 change the oil and filter myself on my 2.7 987 Boxster every 5000 miles and must admit to being slightly disappointed by the lack of a proper dipstick,the electronic gauge seems to be quite hit and miss in it's readings depending on where your parked and the time left after the engine is switched off..
2.7 Cayman- Oil capacity Pre start read outs - Page 1 - Boxster/Cayman - PistonHeads UK
Suggestion
I change the oil and filter myself on my 2.7 987 Boxster every 5000 miles and must admit to being slightly disappointed by the lack of a proper dipstick,the electronic gauge seems to be quite hit and miss in it's readings depending on where your parked and the time left after the engine is switched off..
2.7 Cayman- Oil capacity Pre start read outs - Page 1 - Boxster/Cayman - PistonHeads UK
Run then leave it overnight
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
According to the manual the capacity is 7.75 litres with an oil & filter change but when I fill mine to this level,take the car for a run,then leave it overnight on a level surface and check the electronic gauge again before starting it's registering only half way up the gauge,I have to add another 0.5 litres to get the max reading on the gauge taking the total fill too 8.25 litres which is over the stated capacity which worries me.
2.7 Cayman- Oil capacity Pre start read outs - Page 1 - Boxster/Cayman - PistonHeads UK
Suggestion
According to the manual the capacity is 7.75 litres with an oil & filter change but when I fill mine to this level,take the car for a run,then leave it overnight on a level surface and check the electronic gauge again before starting it's registering only half way up the gauge,I have to add another 0.5 litres to get the max reading on the gauge taking the total fill too 8.25 litres which is over the stated capacity which worries me.
2.7 Cayman- Oil capacity Pre start read outs - Page 1 - Boxster/Cayman - PistonHeads UK
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.
11 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
PistonHeads: 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: 20261026T052503Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
The electric oil level read out is seriously rubbish - you need a perfectly flat surface for it to register properly. I've had mine reading below the bottom level on a slope - then almost full when parked in the garage!
I've used 1L in 5000 miles in my 3.4 Cayman but my dad has a leggy 997 than uses that much in a fortnight!
I change the oil and filter myself on my 2.7 987 Boxster every 5000 miles and must admit to being slightly disappointed by the lack of a proper dipstick,the electronic gauge seems to be quite hit and miss in it's readings depending on where your parked and the time left after the engine is switched off..
According to the manual the capacity is 7.75 litres with an oil & filter change but when I fill mine to this level,take the car for a run,then leave it overnight on a level surface and check the electronic gauge again before starting it's registering only half way up the gauge,I have to add another 0.5 litres to get the max reading on the gauge taking the total fill too 8.25 litres which is over the stated capacity which worries me.
Between 5000 mile oil changes mine appears to use no oil whatsoever running Fuch Titan Pro-Race S 5w40,runs sweet as a nut too!
evojam said:
I change the oil and filter myself on my 2.7 987 Boxster every 5000 miles and must admit to being slightly disappointed by the lack of a proper dipstick,the electronic gauge seems to be quite hit and miss in it's readings depending on where your parked and the time left after the engine is switched off..
According to the manual the capacity is 7.75 litres with an oil & filter change but when I fill mine to this level,take the car for a run,then leave it overnight on a level surface and check the electronic gauge again before starting it's registering only half way up the gauge,I have to add another 0.5 litres to get the max reading on the gauge taking the total fill too 8.25 litres which is over the stated capacity which worries me.
Between 5000 mile oil changes mine appears to use no oil whatsoever running Fuch Titan Pro-Race S 5w40,runs sweet as a nut too!
The manual is not the final authority on the amount of oil the engine takes. This is specified in some document from the factory that the service techs have access to.
I can tell you that based on the factory manual for my Turbo, the engine oil should be at least 70C, and the oil drain time 20 minutes. (The DFI engines have a 1 hour drain interval. There is also an overnight drain interval and believe it or not the amount of oil to add to the engine is a bit more than it is for the 1 hour drain interval.)
Then afterwards 7.8l of oil should be added to the engine. The oil dispensing nozzle reads out in 0.01l so the tech knows pretty accurately how much oil he has put in the engine.
Then the engine is started and warmed up enough to check the level and the level should be at the max. line. (The Turbo engine having a true dry sump system requires the engine be idling, warmed up, and the car pretty level. On this level business the system will not make a reading if the car is not level. In my Boxster the car could be upside down and the reading would proceed.)
However, the oil level in your engine I think is fine. When you check the oil level after the car has sat overnight you are checking the level cold. It will read low by some amount. By my observation from checking the oil in my 2.7l Boxster cold and then hot parked in the same location the difference is two bars. That is cold the oil level will show two bars below the max line. If I check it hot the level is right at the max line.
You should never overfill the engine with oil. I've been told this can shorten the life of the AOS. Why this is so I have no idea. But I do know Porsche cautions against over filling the engine with oil.
There is the issue too of the system is not capable of measuring how much oil over max there is in the engine. Thus you do not know if it is just a fraction of a quart or much more than that.
There is another risk and that is if the engine is overfilled with oil this oil can overtop the oil baffles in the oil sump. The oil outside of the sump baffles and the oil towards the top of the oil outside of the baffles can still have some air in it. If this aerated oil overtops the baffles this can feed the oil pump pickup aerated oil which is not good for the engine.
Rockster said:
.....(The DFI engines have a 1 hour drain interval. There is also an overnight drain interval and believe it or not the amount of oil to add to the engine is a bit more than it is for the 1 hour drain interval.).....
That's interesting. I have the Porsche workshop manual for my 2.9 Gen 2 Cayman, and unlike those shown for 986/996 models, the instructions don't specify a drain time at all.
The techs told me the DFI engines have a longer (1 hour) drain interval and there is a 12 hour (overnight) drain interval too, to allow the tech to start the drain going even at quitting time and then let the engine drain overnight, this is so the dealer can avoid paying overtime to have the tech stay and finish the service.
I do not have access to the newer model factory manuals but if the info is not in the factory manual it is in a TSB, or a update of some kind. Porsche is sort of (make that very) lousy at divulging any details about its cars to the general public.
I had serious interest in getting ahold of some info about Porsches for an automotive test tool I was working on and what I found is Porsche just doesn't publish the info I wanted except to the company that produces its diagnostic computers. I even attended a conference a few months ago in Sonoma CA at which Porsche was a participant and buttonholed one of the Porsche attendees (who participated in some presentations) to ask for this a contact for this info but never heard a word. And I have owned 3 Porsches and currently own 2.
I subscribe to PIWIS TSI, and I can't seem to find any Technical Bulletins on this for the 9x7-2 or 9x1. That's not to say that they don't exist, but this is the first I have heard of it. Being that the sump is integral to the bottom of the crankcase, I wonder why the oil would take so much longer to drain. I'm just curious really.
I have had 6 Porsches, and still have 2, but I don't see what that has got to do with it......
My update---after being concerned about the correct levels and good advice from regular poster CMoose,after the readouts on levels ceased to readout.Local indi said do a 12 mile run to get the oil really upto temp as its not a daily use car.
I had time today to do a 20 mile run and waiting for the 2 minute countdown to finish, the readout showed all levels correct.So perhaps the pre engine start check is pointless, if the Oil is Not upto temperature.
This is a source reference. Confirm exact model applicability in the original material.
