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05-25-2012, 05:07 PM | #23 |
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Surprise! The bearings in my '08 are wearing out! Oh joy! This is why I love Blackstone. They know their shit. And no, I don't drive it too hard. Just one canyon blast.
edit: And BMW is batshit crazy to say that it's okay to run the oil for 15,000 miles. It'd run out of additive and you'd start gumming things up long before that.
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05-25-2012, 08:14 PM | #25 | |
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Also - who is taking the sample? The dealer or you? Because you need to catch the sample in the middle of the oil draining. If you take it at the end, it could make it look at lot worst than it actually is. As far as wear goes - there are a number of people that have talked about the redesign on the bearings, although it doesn't seem exactly clear to me what changed. So their could be some issue there. Running higher octane and/or a less aggressive tune might help as well. No way to tell without logging. If you are getting detonation, that will increase wear on the bearings. What fuel supplier? Also, you are always letting it warm up fully before romping on it right? Pushing it too hard too soon can definitely cause additional wear. Sorry you are worried about this...just offering up some suggestions that may help. Good luck man. |
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05-25-2012, 09:35 PM | #26 |
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05-25-2012, 10:32 PM | #27 |
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So your position is that BMW knowingly destroys their own engines by extending oil change intervals? What is their goal with this strategy?
You know his results are out of line with other engines of this type and the same interval of use right? |
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05-25-2012, 10:51 PM | #28 |
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I dont think I said anything of the kind..just merely staying within a safe margin of error with oil changes interval..the small cost doesnt justify not changing oil more frequently than recommended by BMW
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05-25-2012, 11:03 PM | #29 | |
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Did you know that the great Ferrari now has 12,500 mile oil change intervals? |
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05-25-2012, 11:09 PM | #30 |
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Waste?..Last i checked oil gets recycled? The only waste you are really considering is cost..A $200 oil change vs $thousands in potential repairs..I guess you dont subscribe to preventative maintenance
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05-25-2012, 11:18 PM | #31 | |
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My BMW has preventative maintenance, you just don't agree with the interval. |
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05-29-2012, 04:28 PM | #33 | ||
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Quote:
Quote:
Also, I don't think my results are out of line with other people's experiences based on this thread.
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05-29-2012, 07:00 PM | #34 |
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Free oil changes is US only.
Most people buy in and out of luxury cars long before the engine is even approaching any serious age, so I don't see the planned obsolescence argument. Cars are staying on the road longer than ever now. Your tbn is low and metals are high for the interval IMO. Although in general, UOA's don't speak to the ability of the oil to actually lubricate the engine. 91 octane has a better chance of causing more wear than 12k-15k mile oil changes IMO. Detonation is what beats up the bearings and you will not run the best timing on 91. Although again, there has been some hearsay that the 08 bearings are even tighter than the 09s, and therefore could wear worse. You also don't know how the previous owner treated the engine. |
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06-01-2012, 04:22 PM | #35 |
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Here is my latest report at 37,000 miles
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06-05-2012, 02:55 PM | #36 | |
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We have a oil machine at work so it is convenient. I had to block out certain things, sorry. |
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06-05-2012, 06:19 PM | #37 | |
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Thanks for the report. |
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08-22-2012, 04:34 PM | #38 |
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10-31-2012, 02:52 AM | #39 |
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Wow, great thread...
I'm seeing a trend of high lead in these engines. Mine also showed elevated lead content. Going to check again in a few thousand miles and see if it dropped. |
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11-12-2012, 05:18 PM | #41 |
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Had my oil tested from Amsoil/Oil Analyzers Inc at 16K + miles (and last oil change was at 1,200 miles) and zero issues. For those who are worried about oiled/cotton gauze filters letting in more silicate, so far so good (I have a MS intake/filter w/ RPI scoops). Will be interesting to have this tested over time. Most dealers are compliant with filling the sample jar at service intervals... apparently quite a few customers ask for it.
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11-12-2012, 06:01 PM | #42 |
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Mike -
High lead at what mileage? So far at ~36000 lead in my '08 with no change from the test at ~22k which came up at 5ppm. (been running a test every other change). The next change at 43k will have half a season of pretty frequent autocrossing on it so will be interesting to see if there's a change.
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11-12-2012, 07:15 PM | #43 |
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Mine showed 22 ppm lead, and Blackstone noted that it was unusually high. According to the report it isn't at a level high enough to cause serious concern though. 6k miles on the oil (with a handful of track days); 38k on the motor.
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11-12-2012, 07:46 PM | #44 | |
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Can you post the report here please?
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