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06-09-2010, 12:12 PM | #23 |
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06-09-2010, 12:32 PM | #24 | |
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Britain and Jag was a wise ass comment. Last 2 cents. Now that you are retired and have some free time on your hands ( especially since you don't change your oil that often ), you should look at Risk Management. Life is more than just Quantitative data. WAGs? |
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06-09-2010, 12:44 PM | #25 | |
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Rat and others present their case, as I have recently and I am just kind of tired of retyping the same stuff.. Want the OP to know that there are some folks who dont agree with you. Not a big deal, and I appreciate that most folks here are respectful of each others opinions. cheers.
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06-13-2010, 12:26 AM | #26 | |
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The question isn't that one is "abuse" and the other is good insurance. The question is; why accept BMW's "break in" recommendation, but not the maintenance intervals? It's logically inconsistent to accept BMW's experience and knowledge in one area of mechanical operation, but then not accept BMW's experience and knowledge in another area of mechanical operation. TrackRat: "BMW backs your vehicle with a 50K mileage warranty if you use their prescribed break-in procedure because they have the most expertise on your engine, ...." "If"? What "if" you don't? Your implication is that if one must follow BMW's prescribed break-in procedure in order to have BMW's warranty backing. That's not true. Show me where someone has had their warranty coverage denied because they didn't follow the "break in" procedure. I didn't follow it completely, and had no trouble with warranty in the the least. I do think a sound break-in procedure is important for best performance of the engine, and for it's longevity. BMW's break-in recommendation also allows non engine parts to "break in" for their best use, such as; transmission, clutch, brakes, tires, water pump, etc... Going WFO to red line in every gear as soon as you drive it off the lot, is not a sound break in procedure. But, it's not going to void your warranty either. Also, I do use BMW's recommended maintenance intervals. I followed them for my 2003 E46, my 2006 Audi A4 (per Audi's intervals), and am following the intervals for my 135i. Last edited by RPM90; 06-13-2010 at 12:39 AM.. |
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06-13-2010, 12:47 AM | #27 | |||
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Agree newer spec oils are better now. Could you give us a 20 year %improvement? Quote:
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06-13-2010, 02:55 AM | #28 | |
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You know quite a few with nothing but problems due to following BMW's intervals? I doubt it. I've been on BMW forums for about a decade, and BMW's are NOT known for having engine problems due to following BMW's oil service intervals. If this were such a big problem, as you allude to, then it would be a known issue. But, we don't hear that, and it's not a known common issue. It is quite misleading to scare people into changing their oil sooner than they need to. I have nothing against owners who do change their oil before the recommended interval, but there is no large body of evidence to show there are problems by following the recommended interval. So, it comes down to personal choice and beliefs. Personally, I don't subscribe to belief systems when it comes to things mechanical, as mechanics is based on science. Believing your engine will last longer if you change your oil at 3k instead of 10k, doesn't mean it will, and conversely it doesn't mean your engine will die sooner if you follow the proper intervals either. The only interval that doesn't make sense to me is changing your fully synthetic, 7 quarts of oil, before the 5k mark. Unless you've done a real analysis of your engine, and it shows that your oil is not holding up, I consider that interval to be a waste of money, time, and natural resources. |
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06-13-2010, 03:06 AM | #29 | |
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Most of those are 3 yr leases resulting in mileage anywhere from 30k to 45k. BMW dealers can acquire these cars from auctions. The dealer can choose to have the car "certified", and that costs money. Certified cars also cost more in the market. So, a dealer may decide that he can sell more BMW's if he keeps the price lower by not having it "certified". On the other hand, another dealer may feel that he can sell more BMW's by having the certified warranty, even though that car may cost more. It's a business decision dealers have to make. Plus, the dealers have to decide which cars are worth certifying and which ones are not. If the vehicle is in exceptional cosmetic condition, then it may garner a certified warranty as it's more appealing to certain buyers. If the car has been heavily used, then the added cost of certification may price the car out of the market due to it's poor cosmetic condition. So, the answer is; it depends on a number of factors within the given market. |
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06-13-2010, 03:16 AM | #30 | |
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My comments about the inconsistency were not directed at him, but at the whole subject. There have been quite a number of posters on this topic in many threads who recommend the BMW break in procedure, and then those same posters get on an oil thread and say the maintenance intervals are because BMW just wants to save money. That's the illogical poster. |
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06-13-2010, 02:43 PM | #31 |
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It would be illogical to never change your transmission oil, to be consistent, TrackRat can't answer my question and probably never will, probably due to some hidden agenda.
It would be illogical to think BMW and dealers are not in the business to make money. Since invent of BMW Free Maintenance and comparing to other manufs maintain intervals, there is a huge discrepency. There is a short term model involved with a lot of variables, some of which have nothing to do with long term ownership. Throw Europe into the equation and the business model gets even more complicated. Forums are for enthusiasts, BMW recommended is for the guy who doesn't know how to check or change his own oil. |
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06-13-2010, 10:23 PM | #32 | |
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What? What are you talking about in your second paragraph? Who said that BMW or any dealer is not in business for the money? Address the points given if you have something to agree or disagree with. Redefining the question to suit your ability to answer it, is pointless here. You asked why some lower mileage BMW's are sold without a certified warranty. I gave you some reasons why. I have no idea what you're discussing now. Car forums are full of enthusiastic people for sure. That certainly doesn't translate into, enthusiasts know more about cars than BMW engineers. Enthusiasts can often become over-enthusiastic and promote the concept that more oil changes at lower mileages will result in longer lived engines. There are enthusiasts who still believe that oil should be changed at 3k and 2k miles. I don't care how enthusiastic they are about that, it's a waste of time, money, and resources. |
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06-14-2010, 12:04 AM | #33 | |
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06-14-2010, 12:37 AM | #34 | |
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You seem to defend BMW engineers rigorously. The same engineers that designed the rear sub-frame of the e36/46? I could go on and on. Majority of the time they do a fine job. I think your missing the point of forums. Perhaps we have a different understanding of what an enthusiast is? Your use of the term is insulting. Lets have a poll, Who's engine will live longest? 3k or 18k OCI? Pick one |
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05-24-2011, 10:39 AM | #35 |
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Performing moderate engine de-acceleration, or engine braking from 4000/rpm should be done as it applies a different pressure on the piston ring. This WILL NOT suck oil into the combustion chamber, I don't care who say's it will, it won't.
This is every engine builder's suggestion. BMW is not going to write a 30 page report for every retard that has the money to purchase one. So instead they write a concise, easy for the average "schmuck" suggestion on engine break-in. Any one who argues this simple and logical explanation is just retarded. This is engine 101 guys.....
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