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07-26-2011, 02:23 PM | #45 |
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I'm a smart guy! ...and because I'm a smart guy, I'll follow what the other smart guys (BMW engineers) say to do with my car.
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07-26-2011, 07:41 PM | #46 |
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Don't be quite so universally accepting of BMW "wisdom". 15k (or so) oil changes and "lifetime" DCT fluid for the M3 are recommendations from the same folks (probably not entirely blessed by their engineers though). Most folks in the know vehemently disagree with these recommendations
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07-26-2011, 08:18 PM | #47 |
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07-26-2011, 08:25 PM | #48 | |
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07-29-2011, 03:36 PM | #49 |
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Bump. I am very interested in this topic.
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07-29-2011, 04:13 PM | #50 |
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07-30-2011, 06:12 PM | #52 |
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Same here. I don't agree with oil change intervals and many other things, but I always follow break-in recommendations; cheap insurance . Plus you get used to the car before being aggressive, and in case of 6MTs, avoiding botched shifts, gear grinding, etc.
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07-31-2011, 06:12 PM | #53 | |
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Look bottom line is why would you spend 70K+ on a car and not following the break-in recommendations?
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07-31-2011, 06:13 PM | #54 | |
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+1 Dead on!
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08-02-2011, 06:26 PM | #55 | |
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Also on on mostly unrelated point: Where is Legion5, it's been awfully quiet here since I challenged him? He was active on the forum as recently as 2 p.m. today.
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08-02-2011, 06:36 PM | #56 | |
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08-03-2011, 02:35 AM | #57 |
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I'm seeing the increased need for some like or dislike or some sort of reputation system here on the forum...
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08-03-2011, 08:56 AM | #58 | |
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I bought my E90M3 used so I don't know how it was broken in, but I do have a CPO warranty through 6 years or 100k miles. I wonder whether the ECU stores enough data for the dealer to determine whether the engine was broken in according to the owner's manual and potentially use to deny warranty coverage if a problem arose. |
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08-03-2011, 09:55 AM | #59 |
4th down; 4th quarter? Renegade.
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08-03-2011, 12:09 PM | #60 | |
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It was beaten into my soul to change oil @ 3K for Dino, and 5k for Full Synthetic. Until someone can prove to me that fresh, clean oil isn't better - I will keep changing my oil more often then BMW requires. I'm not burning any oil either.
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08-03-2011, 02:03 PM | #61 | |
4th down; 4th quarter? Renegade.
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I basically followed the BMW break-in procedure and burn a quart every 5-6k miles or so. Honestly, there is very little chance of correlating one to the other either IMHO. There are a lot of factors that affect oil consumption including, but not limited to, environment, driving style, manufacturing tolerances, etc. |
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08-03-2011, 02:23 PM | #62 | |
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I can only tell you a few absolute facts. Firstly, while the break in proceedure I posted is writen by a motorcycle mechanic, it is very widely adopted in racing in different variations. To the point where variations of the proceedure I posted are as widely adopted the fundamental of methods for finding the right racing line around a track. Like finding the right way around a track everyone has their own technique that differs slightly, but it's all fundamentally similar to what was posted. The other absolute fact is that like finding the right racing line around a track, people have put a lot of effort into perfecting it. Racing engine builders have poured litelrally hundreds of millions of dollars into research, and explored every new technique they can get their hands on, yet the technique still remains the same and fundamental with slight variations. This is first hand information from Cosworth staff, which are widely regarded as the best engine builders in the world. To the point where in racing cosworth builds all the engines for Mercedes and McLaren and each team just slap their name on them. Keep in mind this isn't something I gleamed when trying to prove my point on this thread. This information was initially presented when I sought to find a competetive edge with my engine in my race car. I looked into all the possibilities. The final absolute fact is that BMW's proceedure is lame. It is the equivalent of going back to the racing line analogy, replacing a racing line with a bunch of speed limit markers set to the same level of grip and speed as street signs. As someone else mentioned, they were told by BMW's staff at the factory BMW's proceedure is a precaution. Beyond these absolute facts everything is conjecture, this says nothing about the effects on the transmission or differential, and I don't know if BMW even essentially does the same widely accepted proceedure I posted themselves before putting the engine in the car.
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Clean cars are happy cars! CANON PHOTOGRAPHER Last edited by Legion5; 08-03-2011 at 02:29 PM.. |
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08-03-2011, 09:25 PM | #63 | ||
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08-04-2011, 08:58 AM | #64 | |
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I generally split the BMW oil change interval. If BMW requires the oil change in 12k miles I replace it at 6k.
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08-04-2011, 10:48 AM | #65 |
4th down; 4th quarter? Renegade.
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08-04-2011, 11:00 AM | #66 |
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