33 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH996 engine lubrication
Leading reported evidence
Replace oil
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
RAC Performance (formerly RUF) changed my oil and used Mobil 1 0W-40 on my na 996.
Leading evidence: 'Replace oil' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean c3 5w-40 oil 8100 x' (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.
Use aftermarket parts (pistons/rings, cams, lifters, etc) supplier's recommendation
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 have owned mod'd engines in the past -- mod'd them myself in some cases -- and used the aftermarket parts (pistons/rings, cams, lifters, etc) supplier's recommendation for assembly procedures, assembly lube, break in oil and break in procedures and subsequent oil and oil change intervals.
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
RAC Performance (formerly RUF) changed my oil and used Mobil 1 0W-40 on my na 996.
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.
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
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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Motul 8100 X-Clean C3 5W-40 Oil 8100 X-Clean is recommended for the majority of water-cooled Porsche motors in production today.
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Suggestion
Without turning this into yet ANOTHER oil thread, the last time I looked at the recommended oils on the approved list for the 996, it was 0-40 and 5-40.
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Suggestion
In addition this oil exceeds the standards ratings found in the 6100 Synergie+ and as such is a recommended upgrade for anyone increasing the performance of their naturally aspirated engine.
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 have owned mod'd engines in the past -- mod'd them myself in some cases -- and used the aftermarket parts (pistons/rings, cams, lifters, etc) supplier's recommendation for assembly procedures, assembly lube, break in oil and break in procedures and subsequent oil and oil change intervals.
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.
33 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: 20261026T200546Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
the guys @ RUF advised to do a yearly oil change with 10/60 or 20/50 oil to keep the engine healthy for longer life,,
i wanted to share/confirm this with you,,
any comments?
You've obviously omitted several facts which hopefully your mechanics had at hand when they made their assessment, and which an intelligent person would need to know to answer your question.
How many miles/year you drive? Is the car driven year-round? Is it driven daily? Do you ever track it? How many miles on the engine? What is the temperature range where you live?
My extended warranty mandates oil+filter each 6 months or 5000 miles, so naturally that is what I do. The official dealer here uses Penzoil, my indie offers Mobil-1 for those who insist, but recommends some German marque synthetic which they use in their racing team cars. This is the tropics and they all agree on 5W-40. I don't know where other than perhaps the bowels of hell that one would recommend 10/* or 20/* for year-round use.
I'm thinking the RUF guys beat the **** out of their cars, so having a thick oil like that would make sense. I wouldn't hand that out as a general rec.
0w40 mobil 1 is cost effective for dd. I changed mine after 1 yr approx 5km and. Did oil analysis .. oil had plenty of life left. I don't think need to do more often than that unless you are tracking the car ....
Bollucks? From the Uk? Whoever Ruf is? That's a joke right? Try German tuner with manufacturer status that attained world wide renown in 1987 by modifying 3.2L p-cars into 200 mph, street legal super cars (in thier time if not currently as well). Yellowbird? On the cover of every auto mag in Europe, UK, US multiple times? Subsequently produced many extreme performance versions of all model Porsches? OP should ignore their input and follow your lead I guess. Post was from 5:30am you probably just forgot to put the smiley face on it.
This was what I was about to ask... Was it the EX authourized dealer in texas, the Authourized dealer in Michigan or Alois Ruf?
The source of the information is as (if not more) important as the information.
Porsche recommends 10/* for year round.
Yearyl oil change minimum due to water adsorption regardless of mileage.
12k mile oil change interval for high performance synthetics ( according to the manufacturer).
I plan on starting an oil analysis program for my Porsche so I know for certain.
Porsche recommends 10W40. 20W50 if you are racing. 0W40 and 10W40 have different viscousities at spring and fall temperatures but almost identical above 85 F. Yearly oil change minimum due to water adsorption.
Without turning this into yet ANOTHER oil thread, the last time I looked at the recommended oils on the approved list for the 996, it was 0-40 and 5-40. Never saw 20-50 anywhere for the 996 engine, and don't recall 10-40 either, but maybe for a few specific oils. Viscosity is temperature related, not season related. Unless you care not for the wear your engine experiences before it is up to operating temperature, 20-50 is too viscous. Viscosity and lubrosity have nothing to do wih each other. It is strictly a manufacturing tolerance and desired oil flow at critical points that determines what viscosity is desired. Older engines that had larger tolerances required 20-50. Tighter tolerances and the motor oils use as hydraulic fluid in items such as Variocam require light viscosity. Lubrosity depends on the formula and additives desired, which is seemily a moving target as formulas change, and is almost more subjective than objective. Just my $0.02.
You are correct. It's 0w-40, 5w-40 or 5w-50(Mobil 1 5w-50 only).
Here is the most recent approved oils list I have seen.
http://www.pedrosgarage.com/Site_3/P...oved_Oils.html
Note to others, if your still referring to your 10 year old owners manual guess what? Things change.
If by "supercharged" you mean turbo-charged and specifically the 996 Turbo, Porsche recommends, only approves of Mobil 1 0w-40 (I do not think there is another brand of 0w-40 oil on the approved oils list, but I may be wrong), various brands of 5w-40, and Mobil 1 5w-50 (not a typo for 15w-50!).
Look for A40 on the oil container. This is the tag that means the oil is approved for Porsche sports cars.
Unless the Ruf recommendation was for an engine it reworked Ruf's recommendation is worthless as far as I'm concerned.
Sincerely,
Macster.
Macster,
OPs Sig:
__________________
996 RUF Kompressor 4S
Prodriver's comment "Just noticed, I assume your car is
Ruf supercharged
? This may affect proper oil selection & I would think Ruf Dallas should know."
Your 996 Turbo is metzger engine. 996 4S is M96, not nearly as strong as your Turbo cyls
I'm tired and not sure what you point is. But I thought I was clear in my point.
A tuner or engine rebuilder or whomever can make whatever recommendation he wants regarding what oil is best for any engine he had a hand in modifying.
His mods, thus his engine, so to speak, and I would assume he would specify an oil that he believes is best for his engine given the mods to the engine and its intended use.
If I had such an engine I'd listen. I have owned mod'd engines in the past -- mod'd them myself in some cases -- and used the aftermarket parts (pistons/rings, cams, lifters, etc) supplier's recommendation for assembly procedures, assembly lube, break in oil and break in procedures and subsequent oil and oil change intervals.
However, it is my opinion this does not carry over to those of us that have stock engines. In my opinion only Porsche is qualified to make a recommendation regarding which oils are ok to use in its engines.
Sincerely,
Macster.
I use Motul Synthetic .this one.. from a net page......
Motul 8100 X-Clean C3 5W-40 Oil 8100 X-Clean is recommended for the majority of water-cooled Porsche motors in production today. In addition this oil exceeds the standards ratings found in the 6100 Synergie+ and as such is a recommended upgrade for anyone increasing the performance of their naturally aspirated engine. This oil meets Porsche's A40 and VW's 505.01, 502.00 and 505.00 oil standards and is rated for the factory specified oil change intervals.
Requirements: Motul 8100 X-Clean's A40 standards must meet or exceed your factory ratings. You can find your factory ratings in your owners manual. Technical Data Sheet. Recommended Drain Intervals: 5,000 Miles.
The best deal I have seen (and purchased) was on amazon.com. the deal was 1 case (4 of the 5 liter jugs) for $133 and free shipping. I bought 2 cases. Works out to $33.25 per 5 liter. This was 2 weeks ago and the last time I looked they were out of stock. This is for motul 8100 xcess 5w-40
This is a source reference. Confirm exact model applicability in the original material.
