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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > Oil analysis printout (after 7,800 miles)



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      10-29-2005, 08:06 AM   #1
northcountry
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Post Oil analysis printout (after 7,800 miles)

I finally got this scanned. Comments were posted earlier. Its my oil analysis from factory fill oil changed at 7,800 miles.
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File Type: pdf oilanalysis.pdf (74.6 KB, 1065 views)
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      10-29-2005, 09:25 AM   #2
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Thanks for the info....I am now more convinced than ever to get my oil change at 7500 miles interval. But I will will start at 5K, 10K 15K and then stay at 7.5K inverval after that.
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      10-29-2005, 12:24 PM   #3
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Cool Thanks for posting that. What did that analysis cost you?

I suspected that the metal sparkles I saw in my oil weren't good, and your report seems to verify it. Today's the day for my 1st change at 1500 mi. After that, I'll keep an eye on the oil for more metal, and do the next change somewhere between 7500 and 15000.

With all those minerals, the oil would make a good multi-vitamin.
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      10-29-2005, 12:54 PM   #4
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Can someone tell me how much an out of warranty oil change is?
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      10-29-2005, 02:09 PM   #5
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The analysis costs $20. If you contact Blackstone, they will send you out a free oil collection kit. I plan to have the dealer change at 15k. I may keep doing the 7500 mile interval but if the numbers come down (which they should) I may go to 15K intervals. We'll see. I think the dealer charges about $100 for an oil change out side of the free ones. I did mine myself for about $50, oil and filter.
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      10-29-2005, 02:14 PM   #6
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MC - i didn't see any metal sparkles in my oil. i'm not sure what that would be coming from. Normally the filter should be taking anything out that is visible. 40 micron is about as small as you can see - i would think the filter is finer than that. keep in mind the numbers shown on the analysis are in ppm (the copper for instance reads 20 parts per million.)
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      10-29-2005, 05:17 PM   #7
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so if you do it yourself you put 3 liters of oil in, right?
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      10-29-2005, 05:55 PM   #8
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Quote:
Originally Posted by northcountry
I finally got this scanned. Comments were posted earlier. Its my oil analysis from factory fill oil changed at 7,800 miles.
Did you have to pay for this analysis?
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      10-29-2005, 08:17 PM   #9
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How come my manual says the first oil change is 22,000 km ? Why are folks changing at 5,000 miles ?
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      10-29-2005, 08:34 PM   #10
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a member on this board posted here before "I'll change my oil when my car tells me to" - I second that thought
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      10-30-2005, 09:27 AM   #11
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Quote:
Originally Posted by getopts
a member on this board posted here before "I'll change my oil when my car tells me to" - I second that thought
Haha, good luck with that.

Realize that BMW rather replace parts out of warranty, then change oil for free.

Synthetic oil, on its own, essentially can go forever without being changed. That being said, it gets very dirty over time; hence the need to change it. In addition, the oil filter is a major culprit in the 15K oil change game. At 15K, it is completely shot, and often will come apart as you try to remove it.

I think, personally, a change after 1K is good (gets rid of initial metal wear particulates) Then change it at 7500 intervals; half of the BMW recommendation (Also to know, when I got my E36, it ran the same synthetic oil and filter the E90 runs, the difference was that the interval was 7K, and I had to pay for all oil changes)
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      10-30-2005, 10:44 AM   #12
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I don't think BMW is out to ruin its reputation for building engines that can "run forever" by skimping on oil changes during warranty. It only makes sense that there is A LOT more to this decision to set the oil change interval to 15,000 miles than just saving money and thinking "let them blow their engines after the warranty is over, it's not our problem". That's just too simplistic and can only be done by total morons. Also, remember that the same oil change interval is used in countries where BMW doesn't pay for oil chnages.

These are brand new engines and I have to believe, with everything we know about BMW, that they are engineered with these intervals in mind.
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      10-30-2005, 11:43 AM   #13
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After reading the report, I am going to change the oil within next month, and I shall have 5,000 miles on clock.
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      11-01-2005, 01:33 PM   #14
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How do your current 7800 miles in Minnesota compare to mine (or anyone else's) in our respective reginons? Do you live in the City, drive a lot of rural/dusty areas, drive really hard, did you follow the break-in recommendations? Not accusational, just asking the questions to see if there might be something besides miles to consider.
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      11-01-2005, 01:38 PM   #15
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I changed the oil at 2600 miles. I don't care what kind of engineering they put into the engine, the factory fill will grind the engine into pieces if you run it to 15K. I might even get another change at about 10K. It's only $40 on a $40K car. It's dumb not to pay to change the oil when you take the car into to fix the many defects that BMW ships the car with during the first few months.
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      11-01-2005, 01:58 PM   #16
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sweet, i better do mine. thanks for the info.
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      11-01-2005, 02:15 PM   #17
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Quote:
Originally Posted by Yobyot
I changed the oil at 2600 miles. I don't care what kind of engineering they put into the engine, the factory fill will grind the engine into pieces if you run it to 15K. I might even get another change at about 10K. It's only $40 on a $40K car. It's dumb not to pay to change the oil when you take the car into to fix the many defects that BMW ships the car with during the first few months.
Regardless of whether such oil changes are needed, I should note changing the oil at the dealer is around $90, not $40. Still worth it if you believe the original oil will "grind the engine into pieces" if left to 15K.

I personally think it won't do that or anything close to it. I think, however, that it is probably a good idea to pamper your car a little more than the recommended service if you think you will be keeping it for a few hunder thousand miles. If this maintenance schedule will take your car through 100,000 miles, it stands to reason that halving the recommended periods would send it close to 200,000 and beyond.
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      11-01-2005, 02:33 PM   #18
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My baby is a lease, so I'm not changing the oil until BMW pays for it

But good info on that report. I wonder what my dealership would say. I have to go in to bitch about a buzzing speaker, I'll hand them the readout.
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      11-01-2005, 02:40 PM   #19
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I actually don't think the analysis says we should have changed to oil before 7,800 miles (e.g., 1200 like some are suggesting). I changed it at 7,800 miles because I own the car.
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      11-01-2005, 09:18 PM   #20
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agree with silverado. i bought this car and plan to drive it 10 years, 200k. my thinking is to change at 7500 interval until the wear metals are in the normal range, then go with 15k change interval after that. its just a precaution thing, i have no doubt that a 15k interval will work - once i'm past the point of generating particles.

i worked in drivetrain engineering for 20+ years and i am sure they have "run the snot" out of these engines. if they say 15K, there is not a problem doing so. we worked on a 2 million mile change interval for commercial truck axles. believe me, an engineering group would not advocate anything that is going to give you "near marginal" performance. i just prefer to baby this thing because i own it.
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      11-02-2005, 02:02 AM   #21
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My car was set at 11kmiles, not 15kmile and I'm in California. I will change mine followed the manufacture setting.
I've owned a Honda Accord V6 for 5 years and changed oil (Honda oil, not synthetic) every 5000-6000 miles. There was no single problem until I sold it in May 2005. The engine ran so quiet still then. My dad, a mechanic, changed oil for me every time and he was amazed that the oil looked still good at 5-6Kmile. With BMW synthetic oil, it makes sense to change at 11Kmile. So, I would not waste my time and money to change oil before the preset date.
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      11-03-2005, 07:46 PM   #22
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Do any of you providing opinions on oil change intervals have any basis on why you think oil needs to be changed every 3k or whatever? I am a mechanical engineer and design automotive parts, (not engine parts) but I know that all auto parts are tested for the expected life of the product and are no failures are permitted. I am confident that BMW has 1000 of hours of engineering and testing into the engine. Just because the manual of a honda or a toyota or a 20 year old BMW says to change the old every 3k does mean your car needs to be. Advances in oil and material science can likely account for engines lasting longer with less oil changes. I would love to buy a car and never change the oil and see how long it last. I bet it will go pretty long, but the oil manufactures don't want you to know that.

Who cares what this oil analysis says, who is to say X ppm of X material causes the engine to break before 150k or whatever.
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