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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCH996 owners with 30,000+ miles - come in!

Reported or suspected cause

custom order color

Reported cause

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
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Reported fixes
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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 report identifying 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.

Reported cause

Delay was due to custom order color.

996 owners with 30,000+ miles - come in!
Frequently discussed work

Replace annually (~6,000 miles)

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0
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1

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Performed · outcome unconfirmed

Changed annually (~6,000 miles)

996 owners with 30,000+ miles - come in!
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Leading evidence: 'custom order color' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'custom order color' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Replace annually (~6,000 miles)' (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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Compare 4 other evidence results

Replace annually (~6,000 miles)

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

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Performed · outcome unconfirmed

Changed annually (~6,000 miles)

996 owners with 30,000+ miles - come in!

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
Discussions that contain suggestions
1

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Performed · outcome unconfirmed

3) change myself, one of the easiest cars I have every changed oil on.

996 owners with 30,000+ miles - come in!

Suggestion

Usually change the oil when they put the winter tires at a local shop.

996 owners with 30,000+ miles - come in!

Replace oil annually

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

In the past, at my annual mileage, I've changed oil annually.

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Replace oil yet

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.

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 was thinking the same thing--heck, I've never even changed my oil yet, but when I finally do, I'll be doing the following:

996 owners with 30,000+ miles - come in!
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.

Replace annually (~6,000 miles)

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

Changed annually (~6,000 miles)

996 owners with 30,000+ miles - come in!

Replace between services at an independent

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

If I feel like I've been mistreating the car, I get a change between services at an independent.

996 owners with 30,000+ miles - come in!

Replace completed by the dealer

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

Let's see here, on a 15,000 mile oil change completed by the dealer for $180, the average Porsche enthusiast spends 1.2� per mile on oil.

996 owners with 30,000+ miles - come in!

Replace costs you 30� per mile

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

Your 600 mile oil change costs you 30� per mile.

996 owners with 30,000+ miles - come in!

Replace day

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 would have to do 4-5 oil changes a day.

996 owners with 30,000+ miles - come in!

Replace done by my local guy

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

major services done by the dealer, oil changes done by my local guy.

996 owners with 30,000+ miles - come in!

Replace every 3,000

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

on GT3, change every 3,000

996 owners with 30,000+ miles - come in!

Replace every 5k

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

Oil Change every 5K

996 owners with 30,000+ miles - come in!

Replace filter everytime

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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.

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Suggestion

10,000 miles/ every 6 months but change filter everytime.

996 owners with 30,000+ miles - come in!

Replace i did 3rd one

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.

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Suggestion

3) Dealer did first two oil changes, I did 3rd one.

996 owners with 30,000+ miles - come in!
Reported and suspected causes (2)

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

custom order color

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that report identifying 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.

Reported cause

Delay was due to custom order color.

996 owners with 30,000+ miles - come in!

last thread you should participate in

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
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.

Suspected cause

Of all the threads ever started on Rennlist this is probably the last thread you should participate in.

996 owners with 30,000+ miles - come in!
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.

82 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: 20261026T165820Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

A few questions for you guys: 1. How often do you get your oil change? Mileage/length of time. 2. What kind of oil do you use? Brand / Viscousity (<--spell?) 3. Do you do it yourself or do you take it to the dealership? I don't drive my car enough to justify getting it done more than once per year...but I think I should do it once a year regardless of the mileage...right?

POST 3Original post

Mileage: dealer service every 15k, which is about every 8 months. If I feel like I've been mistreating the car, I get a change between services at an independent.

POST 4Original post

Quotes source post: 4728507

1. 7500 Miles, usually about 2-3 times a year 2. Mobil-1 15W50 3. I take it to my Indy.

POST 5Original post

61,000 miles major services done by the dealer, oil changes done by my local guy. 1. Every 6-8k 2. 0-40 Mobil 1 3. See above.

POST 6Original post

39K 1. Once a year or roughly every 9K 2. 0-40 Mobil 1 3. Dealer for everything so far. But since the warranty is over now, I'll be taking it to an indy.

POST 7Original post

1. 10,000 miles/ every 6 months but change filter everytime. (have over 100,000 miles and oil is a dark brown, never burnt black at change, light brown when new) 2. Mobil 0W-40, 15W-50 in hot summers (been thinking of Royal Purple or Amsoil) 3. Myself, low rise ramps from Autozone make it a breeze

POST 8Original post

68,000KM 1) Every 6000 KM 2) 0-40 Mobil 1 3) Scedualed Service at Dealer, all other Services/Mods at a Indy...

POST 9Original post

36,000miles 1) every 7,500 miles 2) Mobil 1 5-40 3) change myself, one of the easiest cars I have every changed oil on.

POST 11Original post

73k miles, I change the oil and filter every 10k miles give or take a few thousand. I use Mobile 1 0-40, and do it myself. Scott.

POST 12Original post

1. 3000-5000 depending on number of track events 2. 0-40 3. DIY

POST 13Original post

104,000 miles 1. ~5000 miles 2. Mobile 1 3. Local Shop (All German Auto in Escondido) I believe you are right - you should get it changed once a year even if it's not being driven a lot. I'm pretty sure the oil starts to "go bad" after a period of time.

POST 14Original post

44,600 miles on the clock 1) every 12,500 miles +/- 2) Mobil 1 0-40 3) Dealer did first two oil changes, I did 3rd one.

POST 16Original post

50K on chassis, 15K on engine 1x a year castrol 5-50 indie

POST 17Original post

Every year, approx 4-5k expected. Mobil 1 0W. DIY or private mechanic - it is simple.

POST 18Original post

35K on car. 1. Just got the car and haven't done it yet, but expect it will be 7.5k intervals or whenever I have it on jacks. 2. Mobil 1 0-40. 3. DIY, see 1 above.

POST 19Original post

Quotes source post: 4729079

Just like above. Maybe dealer first time then I plan to do it myself.

POST 20Original post

80k 1. 7500 2. 0w40 3. Friend with Oil Change Shop

POST 21Original post

Current mileage - 40,123 MY99 1. 5000-7000 mi. 2.Mobil 5w-50w 3. Indy

POST 22Original post

50K 1. 7500 or 1/yr 2. 5w50 (summer) or 0w40 (winter); Florida car 3. DIY using lift on Base $4/hr

POST 23Original post

130k miles 1) 6000 miles 2) 0w40 3) DIY using lift in my garage

POST 24Original post

2,488 (yeah, stop laughing) 1. Annually or every 600 miles (whichever comes first) 2. Mobil 1 (0-40) 3. Dealer (they need a laugh every now and then, too!)

POST 25Original post

Quotes source post: 4728507

Correct 2002 996 - 36,000 - Roughly every 7,500 miles - M1 0-W40 - Dealer

POST 26 / ORIGINAL POSTEROriginal post

Quotes source post: 4729295

daaaaaaaaaaaaaaaaaaaaaaaamn!

POST 27Original post

Quotes source post: 4729295

Don't you like driving your car?!?!

POST 28Original post

1. Every 5k 2. 0-40 Mobil 1 3. Do it myself... Except for major work I do pretty much all the work myself. Savings in not paying a technician $100+ an hour ends up paying for upgrades, tools, etc. In fact this weekend will be installing a new clutch and lightweight flywheel. Savings on labor paid for almost all the cost of the flywheel

POST 29Original post

You guys have oil that's good for 15K and you're changing it out before 10K. You're insane. Tim's the only one with sense.

POST 30 / ORIGINAL POSTEROriginal post

Quotes source post: 4729528

How about if you only put about 3,000 miles per year...should you change it every 5 years...?

POST 31Original post

41K miles (bought the car in June with 35K) changed at 40k miles (5K into ownership...but may extend that based upon posts here) 0W-40 DIY with lift in the garage and a nice large oil basin with 5 foot extended neck and large base on top J

POST 32Original post

33k miles Annually which works out to be ~6k miles 0W-40 DIY

POST 33Original post

current millage: 40k 1) every 5-6k miles but at least once a year 2) Mobil 1: 0-40 3) Indie or DIY

POST 34Original post

43,000 miles (purchased w/ 32,000 miles) Changed annually (~6,000 miles) Tried German Castrol 5W30 for 5,000 miles, now trying Renewable Lubricants Inc. 5W40 HD DIY

POST 35Original post

84,000 km. In the past, at my annual mileage, I've changed oil annually. I'm going to do it fall and spring, now. Mobil 1 0-40. Indie does the work.

POST 36Original post

Quotes source post: 4729558

Every other year is fine if you're not doing the miles.

POST 37Original post

1. 5000 miles 2. 0W-40 Mobile 1 synthetic 3. Local Shop

POST 38Original post

Quotes source post: 4729295

Phil, stop it! JUST STOP IT!!! You're killing me! I have been sitting here for the last three minutes laughing so hard that tears were welling up in my eyes and I couldn't see the keyboard or screen clearly enough to type the response. OK, now I'm ready. Of all the threads ever started on Rennlist this is probably the last thread you should participate in. 2,488 total miles driven and you are commenting on the frequency of oil changes? That's like the Pope telling us how many times per month that he has sex! It's guys like you and the Pope that distort the averages! (OK, guys, the reference to the Pope was just an analogy, nothing more) Let's see here, on a 15,000 mile oil change completed by the dealer for $180, the average Porsche enthusiast spends 1.2� per mile on oil. Your 600 mile oil change costs you 30� per mile. Or stated another way, you get 67 miles per quart of oil while the rest of us get 1,667 miles per quart of oil. Phil, I've gotta hand it to ya, if nothing else, you are relentless in your unwillingness to drive your C4S. Now go out to the garage and say hi to your car!

POST 39Original post

Yeah, I don't understand why in the world someone would buy a Porsche and be afraid to drive it, or never have the urge to drive it. If buying a car for the purpose of staring at it and telling people that you own it, then I would think a Ferrari would be a better choice. I think it's really wierd, especially since he seems to be proud of it.

POST 40Original post

35000 (much track use, 15-20 days/year) 1. Once a year, whether it needs it or not 2. 0-40 3. Dealer Doesn't use a drop of oil.

POST 41Original post

Just changed her today. Moble 1 0-40 Local Dealership

POST 42Original post

Quotes source post: 4730081

same and i bet you phil G has some sort of obsessive-complusive disorder or some other psychological hurdle. serious.

POST 43Original post

Quotes source post: 4729558

No, you should be prohibited from driving/owning a Porsche and be forced to drive a KIA!

POST 44Original post

78,000; change oil, oil filter, air filter every 5,000 miles. on GT3, change every 3,000

POST 45Original post

53,500 miles. Oil Change every 5K Mobil 1 0W-40 Indy for oil changes Dealer for major 15K services.

POST 46Original post

Quotes source post: 4730128

Thought you'd get a kick out of my last post! You know, when I do drive it I really appreciate how damn fun it really is, what a great car it is, and I remember why I bought it in the first place. I realize that driving it like I do is a sickness that medicine may find a cure for - hopefully in my lifetime. BTW, I'm not going near the Pope analogy.

POST 47Original post

Quotes source post: 4729528

How many track events do you do with your 15K oil change intervals?

POST 48Original post

Once a year or 7k, which ever happens first. Usually change the oil when they put the winter tires at a local shop. 0-40.

POST 49Original post

Quotes source post: 4729295

Do you just drive your car In and Out your Garage? i put that much in a month

POST 50Original post

Quotes source post: 4732075

It's a running joke on the board - it's a weekend toy - but yeah, lots of in and out.

POST 51Original post

I have 84000 miles amsoil european formula 5w50 10 miles changes.

POST 52Original post

Quotes source post: 4732254

You have done 8400 oil changes? How much did that cost? I would have to do 4-5 oil changes a day.

POST 53Original post

Quotes source post: 4732075

Yeah, he backs it out of the garage, then truns off the car and for the next 45 minutes sits in the car and makes vroooomm noises. Then he starts up the car and pulls it back into the garage. The only time it gets on a public street is when he needs to get it instected, and for his annual 600 mile oil change.

POST 54Original post

Quotes source post: 4732116

Does Griot's sell a product to remove afterbirth from your car? You might need that.

POST 55Original post

1. 80,000 miles; 2. whatever is on sale at the gas station; 3. Jiffy Lube.

POST 56Original post

Quotes source post: 4731311

That's a really good question.

POST 57Original post

Quotes source post: 4732900

That's just not right. Actually, Zaino makes a product....

POST 58Original post

Quotes source post: 4733018

[Image-only post; no author-written text. Original image references:] https://rennlist.com/forums/images/smilies/smile.gif

POST 59Original post

82000+ miles every ~6000 miles Mobil One Indie Have to add ~1/2 qt between oil changes

POST 60Original post

Quotes source post: 4733002

Not really, it shouldn't make a difference how many track events that you do. It's a synthetic oil, it's designed and tested to withstand the stresses of high performance use. It will not degrade because you do a few track events. Synthetic oil is very durable.

POST 61Original post

Quotes source post: 4732116

I know you've got an S4 on order (didn't you get it already?), but I have a dumb question: since you do put so few miles on your weekend P-car, wouldn't it make more sense to spend the money on say, an RS4 for your daily driver and trade the 911 for a cheaper/older model, like a MY99 or MY00? I only ask because it would drive me nuts to know that I could have the "same" Porsche in my garage for a lot less money than what yours probably cost, while I'm [presumably] driving around in less car than I could be for from Monday to Friday. Not a slam on you or anything, just curious. I can't say that you're "wrong" to do what you're doing, but I'd probably make the S4 my weekend/family car and drive the 911 during the week.

POST 62Original post

Quotes source post: 4729528

I was thinking the same thing--heck, I've never even changed my oil yet, but when I finally do, I'll be doing the following: 1) Every 15k miles or 2 years 2) Whatever oil Porsche recommends 3) Who cares? It's not like changing oil is rocket surgery... Maybe I'll even do it myself...who knows?

POST 63Original post

73K (of which 68k+ is mine), change oil and filter every 7500 + or -, Mobil 1 "water," indy.

POST 65Original post

Quotes source post: 4733266

"rocket surgery" I love it!

POST 66Original post

Quotes source post: 4728507

1. every other 2 day track event. before i started tracking every 5000 miles. 2. mobile 1 0w/40 3. diy

POST 67Original post

Quotes source post: 4733256

The S4 is now due in on 12/3 - finally got a VIN. Delay was due to custom order color. I had a B6 S4 which I tried to use as a weekend car, but decided that the Porsche made more sense for that role. The S4 will get the day-to-day duties - an RS4 for me anyway, is just not worth the extra $15K - $18K. I still really do enjoy both owning a pristine Porsche, and using it for limited weekend fun driving. I know you're not making judgments here, and having a brother with 2 vintage Ferraris sitting in his garage, I'm still the "sane" one in my family

POST 68Original post

Quotes source post: 4734790

If that's the case, then your brother must really be !@#$%^&* crazy!

POST 69Original post

Quotes source post: 4733242

Oil Analysis shows differently. On the 996 I sent my last 5000 mile oil sample to Blackstone labs and they did suggest that I could stretch my oil change interval if I wanted...but suggested going up in only 500-1000 mile increments and then re-evaluating because I do track my car some. In my research most mobile 1 users that are using it purely in track cars are getting around 15 hours out of their oil before it degrades. Again, this is based off of oil analysis. Knowing this...it's cheap insurance and peace of mind for me to change at 5000 miles with the way that I use the car. However, I do believe that in a street-only car that modern oils can go 7500+??? miles without a concern on quality oil. The best way to know is to pick an interval that you're comfortable with, send the oil off to Blackstone and pay them a small fee for peace of mind and their suggestion on oil change interval based on actual analysis. Andy

POST 70Original post

Quotes source post: 4735273

I cannot argue with data on a car that is tracked, but I can say that if my car is good on the street with 15K between changes, then that's good enough for me.

POST 71Original post

Quotes source post: 4735006

He's a psychiatrist - need I say more?

POST 72Original post

Quotes source post: 4737262

You should ask him why you have only ~2.5 miles driven per post on rennlist.

POST 73Original post

Quotes source post: 4737262

Heaven help his clients! That really brings the phrase "physician, heal thyself" into perspective!

POST 74Original post

Quotes source post: 4735273

hey audi, i wouldn't buy a car where the oil's been changed every 15K miles whether it's tracked or not - in fact i switch it up every 5K for PEACE OF MIND (i admit it). so stated, i really wouldn't lean on "blackstone" labs "analysis" of oil as some sort of credible benchmark to determine whether oil is good or bad based on their results. i've seen their results and it's good bathroom reading. what they don't provide are the actual consequences and real life results from running oil "too long" - no real world experiments. too costly. no one has the time and they're already able to pull in the $$$ from people who like numbers and data. i'm sure they do good work and all and they should cuz they're making mad dough.

POST 76Original post

Europeans tend to change oil at 10-15k. We can't understand why Americans change the oil every 3000 miles, but expect tyres to last 50,000 miles.

POST 77Original post

Every 5000 miles New filter and Mobile 1......15-50 DIY

POST 78Original post

The reason Americans change oil so often is that they pay 5 times less for a quart of Mobil 1 than you do. The reason they want their tires to last so long is that they only get them about 25% less than you so to equal out the cost they have to last longer.

POST 79Original post

Quotes source post: 4761207

Speak for yourself! I don't regard an oil change as inexpensive compared to my other cars. The oil and car have a spec of 15K, so you change them at 15K. The tires have a spec and I expect them to live up to it.

POST 80Original post

Put me in the 'fool' category. I change mine twice yearly, spring and fall, which is about four times as often as Porsche recommends for the mileage I do. Why? Because the normal intervals are for 'normal' use, as opposed to 'severe use'. The latter includes heavy traffic, dusty urban air, and short trips. Guess what three quarters of my driving is like? Every contaminant an engine takes in ends up in the oil. On lightly driven cars, so does water. It's cheap insurance. I also do not do my own maintenance. I'm one of those guys who uses his money to buy back his time (I seem to recall this was offensive to some, but whatev'...). Frequent oil changes means someone who knows what they're doing is frequently under my car, keeping an eye on things. Peace of mind for me. Cheaper than a coke habit.

POST 81Original post

I change mine early because the oil isn't exactly at it's "best" at 15,000miles. So what happens at 15,001? Is the oil suddenly bad at that point, but all miles before than it's perfect? The oil is going to slowly degrade with mileage, as we all know, so why not keep it nice and fresh?

POST 82Original post

Quotes source post: 4728507

At least once a year. Mobil 1 synthetic 0-40. Do it myself.

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