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03-27-2013, 08:57 AM | #1 |
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Oil ChanGe @ 2k
Featured on BIMMERPOST.com Due Guy Think Is Important To Have The Oil Change Now Or Just Wait Till My Schedule Service.. For Those Guy Who Have Change Thier Oil At 25oo Or So...was There Any Particles In Your Filter? Advance Thanks For Any Feedback.. |
03-27-2013, 09:43 AM | #3 |
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Hehehe... Ok let me rephrase that.. Any large shaving particles in the oil filter at the first 3k miles... Is it important to have an oil change at this point or just wait when your service is due..???
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03-27-2013, 11:01 AM | #4 |
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I did my first at 15k per BMW. I have done 15k mile oil changes for years on my BMW with no issues
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03-27-2013, 01:27 PM | #5 | |
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Oil change for "new car"
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03-27-2013, 01:41 PM | #6 |
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I read a thread where one guy took apart his oil filter after an initial early oil change. The filter had some small metal shavings, but nothing to be alarm at.
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03-28-2013, 02:17 AM | #8 |
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Despite how long oil last nowadays, I change both my BMWs between the scheduled oil change. So I do mine every 7,500miles (free every other oil change). If you're OCD like me, just change it at 7,500. 2k miles is too early and might be bad for your car, unless the oil is over a year old.
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03-28-2013, 05:15 AM | #9 |
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How can changing the oil prematurely ever be bad for your car? It can be bad for your bank balance, but provided you are using oil of the correct specification and an OEM filter, it can't do any harm.
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03-28-2013, 09:02 AM | #10 | |
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Supposedly lube mfrs are developing "fast burn" formulations of ZDDP that set up faster.
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03-28-2013, 10:38 AM | #11 |
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If you do change oil early I suggest you spend the $25 or so for a lab oil analysis. I changed mine at 2500 miles and alternate with the factory 15k so I end up with oil/filter every 7500 miles.
you'll get a report on the metals found, nitration and the viscosity of your used oil. Blackstone and Oil Analyzers (Amsoil) both provide this service here the report for my 550 http://f10.5post.com/forums/showthre...&highlight=oil
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03-28-2013, 12:36 PM | #12 |
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If you do have used oil analyses done, you might also consider Polaris labs http://www.polarislabs.com/, or Oil Analyzers Inc. http://www.oaitesting.com/index.htm. Polaris is ISO accredited. Oil Analyzers is cheaper and they actually are a "private label" for Polaris - - Polaris does the actual lab work. Blackstone is a well known lab but the only problem is they do not actually test or measure fuel dilution (an important metric in turbocharged direct injection engines - - like the n55 in the 535). Fuel dilution is a side effect in all di engines and aggravated by turbocharging. Blackstone uses a formula to estimate fuel dilution based on the degradation in flash point. In theory it should give an accurate estimate, but in actual practice it doesn't. I had a n54 with Dinan stage II and submitted samples from the same drain to both Blackstone and Polaris. Blackstone reported fuel dilution as nil (less than 0.5%); Polaris reported fuel dilution as slightly over 2.0% (the upper limit according to most guidelines), and this was with a very short oil change interval - - about 3k IIRC.
If I had an engine with an aftermarket mod that increased turbo boost, I'd keep a close eye on fuel dilution. Among other possibly bad effects, fuel dilution messes with the oil condition sensor BMW uses - - it keeps the dielectric constant artificially high and fools the ecu/oil condition sensor into thinking the oil condition is perfecto. Hope this is helpful and not too pedantic. Oil is my favorite subject.
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03-28-2013, 09:44 PM | #13 | |
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New engine needs friction to wear down all the parts for optimum performance/seal. If the oil is too slippery, it will take longer for parts to break-in appropriately. Just wait until 7,500 and stop thinking about it, you'll get less grey hair. |
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03-28-2013, 11:29 PM | #14 | |
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03-29-2013, 08:49 AM | #16 |
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I just had my first oil change performed two days ago (by my local BMW dealer) with approx 12K kms (7500 miles) on the odometer. As an aside, it cost $135 before taxes. I've been tracking through this site many, many opinions on when the best time to change your oil might be, and I concluded that the best answer really boiled down to something like 'at whatever time will help you stop worrying'. Nothing more scientific than that. As mentioned above, you could stimulate the advance of grey hair (to late for me) by worrying about it too much. I really enjoyed the technical analyses such as those by m6pwr, and compared this against a very knowledgeable mechanic friend of mine (with first-hand experience on many, many engines taken apart over the years) who was aghast that someone would not change their oil within the first 5000 kms of new car ownership. I concluded that I'd be happy by halving the recommended change interval from approx 24K kms to just 12K kms. My next oil change will be compliments of BMW, at 24K kms or 1 year, whichever comes first.
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2010 Z4 35i, Crimson Red, beige interior, 6sp manual, Adapative Suspension 2000 528i, Cosmo Black, beige interior, Sport package (retired) Last edited by cdmulders; 03-29-2013 at 08:55 AM.. |
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03-29-2013, 09:57 PM | #17 |
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03-29-2013, 10:09 PM | #18 |
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I get gray hair, too, reading my posts. Most everybody seems to get it (not gray hair, but the idea). You can't really harm your engine doing too frequent oil changes, but you don't really do anything to enhance its durability/longevity either. What it boils down to is like what the bumper sticker says: If it feels good, do it . Otherwise, stick with BMW's recommendations. They're based on a whole lot of research and testing, both over the road and in the laboratory.
Here's a link to one of the testing organizations BMW uses in establishing its maintenance protocols. Notice all the pretty pics of BMWs. This will make you bald: check out mention of Radio Tracer technique. It's an extremely accurate method of using radioactive isotopes to measure wear in an engine. Far, far superior to judgements of neighborhood mechanic. http://www.isp-testing.com/en/
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03-30-2013, 08:59 AM | #19 |
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Thanks again m6pwr for more insightful information on engine wear. This does interest me considerably as well. I'm a telecommunications engineer vice mechanical but I do appreciate a measured and empirical approach to analysis vice anecdotal opinion. I actually do trust BMW engineering and analysis - I went with an earlier than recommended oil change in large measure because I in fact didn't want to have my mechanic friend role his eyes one more time at his perceived tardiness of my oil change regimen. He is also self-admittedly much more familiar with older engines and is not read in on the latest advances in lubrication and metals technology. In this case, newer is definitely better.
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03-30-2013, 10:51 AM | #20 |
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Glad you found some of what I posted helpful. I do get carried away on the subject sometimes. FWIW, I'll also be changing the oil at around 7500 mi to take advantage of BMW's annual oil change policy, and of course will be doing a used oil analysis. Can't wait to see the results. I'm so excited - - and anal.
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03-30-2013, 12:17 PM | #21 |
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