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Discussion Starter #1
I'm at 16K miles, and thinking that I know the factory says every 10K, and I'm running Mobile 1, and I do 10K on my Jetta with Mobile 1 just fine...but wondering if an extra change can't hurt. Who here is doing more than the factory interval?
 

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Re: Who is doing > than factory interval for oil change? (JakiChan)

Manual & service schedule is every 5k.
 

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I am not (yet) but oil analysis suggests it is possible to go for longer than VW recommended 10k......that's really the only way to tell, send your oil to Blackstone Labs the next time you change it and they will send you a report, then you will know how far you can stretch between changes for your car.
 

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Re: Who is doing > than factory interval for oil change? (R-ACE)

First oil change is at 5k, then at 10k, then at 10k OCIs from there.
- Anthony
 

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Discussion Starter #5
Re: (wrh3)

Quote, originally posted by wrh3 »
I am not (yet) but oil analysis suggests it is possible to go for longer than VW recommended 10k......that's really the only way to tell, send your oil to Blackstone Labs the next time you change it and they will send you a report, then you will know how far you can stretch between changes for your car.

I am not saying I'm gonna go longer than VW says - what I'm asking is if anyone here is going shortner intervals than 10K? And if there's a good reason to? I'm running Mobil1 0-40.
 

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Re: Who is doing > than factory interval for oil change? ([email protected])

Ah, did I get a diff. book from every one else? ...I started to feel like more of a clod than usual, went out to the car, grabbed the book. Open it up, every 5k.... Did I miss a memo.

How do you get the updates around here?

EDIT: I'm a clod... If you read the wrong page, you get the wrong info out of it
Next rounds on me, I've obviously had too many already...



Modified by R-ACE at 6:33 PM 4-24-2006
 

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i changed mine at 2500, 7500, and 12500 so far, but i do about 8 track days a year, and drive almost exclusively in the city, so i figure i should change a bit more frequently... as it is, i only end up changing twice per year, and i don't like to leave the oil in season after season.
 

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After every 2500 miles from a fresh change I change OIL ONLY then 2500 miles from that I do OIL AND FILTER and restart the process again.

You can usually feel when a change is necessary by day to day driving. Also aftermarket mods make a harder working faster revving and put a higher revlimiter on the car and with those considerations, the engine works harder than what the 10k range is specified for on a factory non modded motor.
 

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Re:

I'm used to doing it every 5k from my old 12v, the 24v recommends every 10k. I decided to just split the difference and do it every 7.5k. I've sent my motorcycle oil to blackstone labs, haven't done it with my car oil yet though.
 

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Re: Who is doing > than factory interval for oil change? (JakiChan)

If what you were asking was if people go shorter than recommended, you
should have used < instead of > in the topic.
Yes many many people don't trust the VW engineers, or the numerous
laboratory test results which show that the factory 10k interval
is totally fine as long as you use synthetic oil, and they routinely throw out
perfectly good oil with many thousands of miles of life in it.
I've yet to see a single oil test result that shows that someone has run
their oil too long. Instead people rely on highly scientific analysis
methods like.. "It looked pretty dark." and "My dad/mechanic always
changed it every 3k miles so I'm going to do the same", ignoring
details like the fact that synthetic oil is relatively new in
the history of automobiles and lasts much much longer than dino oils.
In Europe it's not uncommon for the oil change intervals to be in
the 15-20k mile range. It makes me cringe when I see people
dumping a good synthetic oil at 3k miles. What a waste.
BTW, if you're going to do oil and filters on a different schedule,
the filter should be changed more often than the oil. E.g..
5k miles for the filter, and 10k for the oil. A new filter will clean
old "dirty" oil but new oil will be contaminated by an old dirty filter.
ian
 

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Re: Who is doing > than factory interval for oil change? (twinturbo666)

Quote, originally posted by twinturbo666 »
3 k for me


same here every 3k miles i change my oil and filter....
Am I wrong? should i be changing it every 10k?

 

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Discussion Starter #13
Re: Who is doing > than factory interval for oil change? (Daemon42)

Quote, originally posted by Daemon42 »
If what you were asking was if people go shorter than recommended, you
should have used < instead of > in the topic.

Sorry, I meant it as "more than", but you're right. I'll be sticking with factory for now.
 

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Re: Who is doing > than factory interval for oil change? (JakiChan)

I started out at every 2500 miles, but have gone to every 5000 miles.
--Chuck--
 

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Re: Who is doing > than factory interval for oil change? (Spoolin1X)

Quote, originally posted by Spoolin1X »

Am I wrong? should i be changing it every 10k?

Is there some scientific reason that you're ignoring the owner's
manual and changing it every 3k miles? Sure seems like an
expensive, environmentally wasteful course to follow, if there's no good
reason. (I'm not picking on you specfically. Anyone can
answer this question.)
For those who say.. "I changed it ever 3k in my last car and it went for
200k+ miles" then why not change every 2k miles? Why not 1k? Why not
just drain out half a quart every week and top it off as you go along?
3k miles was the recommended change interval for dino oil 30 years ago.
Has oil technology not advanced at all since then? Can anyone show me
a laboratory oil analysis for any sythetic oil that has shown a TBN
approaching 1, or viscosity more than a few percent from spec,
at a 5-10k interval?
ian
 

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Re: Who is doing > than factory interval for oil change? (Daemon42)

Quote, originally posted by Daemon42 »

Is there some scientific reason that you're ignoring the owner's manual and changing it every 3k miles?
For those who say.. "I changed it ever 3k in my last car and it went for
200k+ miles" then why not change every 2k miles? Why not 1k? Why not just drain out half a quart every week and top it off as you go along? 3k miles was the recommended change interval for dino oil 30 years ago. Has oil technology not advanced at all since then? Can anyone show me a laboratory oil analysis for any sythetic oil that has shown a TBN approaching 1, or viscosity more than a few percent from spec, at a 5-10k interval?
ian

But the guy at Jiffy Lube told me... oh nevermind.
 

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Re: Who is doing > than factory interval for oil change? (Daemon42)

Quote, originally posted by Daemon42 »

Is there some scientific reason that you're ignoring the owner's
manual and changing it every 3k miles?...

Not every 3k, but I change mine more often than the mfgrs
recommendation.
Not for any scientific, or even logical reason, but because it gives me peace
of mind.
Its one less thing for me to worry about.
It may be a little wasteful, but it's not as if I'm Joseph Hazelwood, fouling
Prince William Sound.

--Chuck--
 

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Re: Who is doing > than factory interval for oil change? (JakiChan)

I've been using synthetics since 1974 on every car I've owned. 10k is my interval change, but sometimes I'll let it go a little further if I don't have time. Several cars I've owned came from the factory with synthetic, the R one of them. The original Mobil 1 recommendation was 25K. I figured, conservatively, if I did it at 10K, that was less than 1/2 the manufacturers number, and well past my comfort level of 3K, based on my previous years of driving and using 'dino'. After suspiciously using this formula, and carefully monitoring my engines, I came to the conclusion that synthetics have no need to be changed any earlier than 10K. I've never had an engine fail with this interval, and I have driven over 1 million miles. (245,000 on one car alone.) Changing oil with any synthetic brand at 3 to 5k is a total waste of money. No different than burning your dollar bills. If you really want these short intervals, then 'dino' is a much better choice.
for what it's worth. . . .
 
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