13 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHOil Analysis - continued peace of mind
Leading reported evidence
Run longer
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 · Original poster
"You ran longer on the engine this time, but wear metals either held
Leading evidence: 'Run longer' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'best $25.00 you can spend' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Fill longer yet metals are all lower than average' (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 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 been sending samples off to Blackstone every oil change, too; I used their analysis to change my oil change intervals with complete confidence.
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 suspect a cause
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.
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
You ran this fill longer yet metals are all lower than average, so you've got no obvious problems at work in your Porsche.
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've been sending samples off to Blackstone every oil change, too; I used their analysis to change my oil change intervals with complete confidence.
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.
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: 20261026T205155Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Below is the oil analysis summary from Blackstone Labs with 5,700 miles on the oil. I have never run either of my 996's much beyond this between oil changes. Studied auto mechanics back when an 8 track tape player in a car was rare and amazing and still remember an instructor saying that we should equate engine oil as the life blood of the machine.
I started using Blackstone for oil analysis about a year ago and so far all reports on both 996's have provided me with some peace of mind.
For $25.00 it's well worth it to me.
"You ran longer on the engine this time, but wear metals either held
steady or dropped lower than before, so there certainly aren't any problems we can see from that standpoint. Everything continues to compare well with universal averages. No harmful contaminants or other issues were detected. Another great report for your C4S at 33,104 miles. Nice engine!"
been using them since Harley ownership last decade....very similiar to this forum in every way. always very good to see a good report. here's another-
"You didn't sound real sure about the oil type that was used, so we're not too concerned that the viscosity didn't measure in the 0W/30 range. It read more like a 10W/30 or even 5W/40. At any rate, wear metals read nice and low so your engine did fine on this viscosity. Universal averages show how metals should read after about 3,600 miles on the oil. You're getting wonderfully low numbers after 3,000 miles on your oil. No coolant, water, fuel, or other contamination was found and insolubles read nice and low. Great report! Try 5,000 miles."
My indy used "Total Oil 5000" so i really don't know what the range was-
m
not associated with these peeps in anyway, just email them, they send u the plastics jars to send in samples. based only on my experience w bikes & this car, would highly recommend-
m
http://www.blackstone-labs.net/(guiup0murpy4y4550b0nt0jf)/signin.aspx
Great service as well, your reports are stored on their web site so it is easy to find and compare. Mailed the latest sample on Friday and even with the Holiday had my report in my inbox yesterday. You can add a TBN if you are interested in seeing if you can extend the interval, I am not so I only ordered the TBN on the first samplel, costs an extra ten bucks.
Here is the summary from the C2 with 70k miles on the engine and 5300 miles on the oil.
"Universal averages show how wear metals should read from this engine after about 4,000 miles on the oil. You ran this fill longer yet metals are all lower than average, so you've got no obvious problems at work in your Porsche. The viscosity read in the 10W/40 range, and there was no fuel, moisture, or other contamination present. The TBN read 3.3, plenty of active additive left in the oil. It appears as though you have a nicely wearing Porsche engine, so longer oil change intervals should be no problem at all. Try up to 7,500 miles next time.
Here is what I use:
http://napaonline.com/Catalog/Catalo...077_0331367117
I forget the name of the lab they use, but the analysis is good info and only $13.99 to boot!
This is a source reference. Confirm exact model applicability in the original material.
