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BMW Oil Study Done-Long Interval Changes unhealthy for N54 engine
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07-09-2009, 03:31 PM | #23 |
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Agreed with Saintor and jb's335.
One lab report is pretty meaningless, and I have a very hard time believing that BMW (and so many others) would be recommending such a long interval if a simple oil test proves them wrong. I'm quite confident these engineers know what they are doing on the engines THEY developed. I'm borderline anal when it comes to taking care of my cars, but will always follow the recommendations of the manufacturer before some random lab test. And to those of you who are changing oil every 3-5k (and using synthetic presumably) - that's a waste. Quality synthetic oil is fine for well beyond that.
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07-09-2009, 03:47 PM | #24 |
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http://www.scribd.com
Search BMW Law Suits. This is now public information. Lets hope we finally get the root of this. My car still gets 30% less gas mileage than it did prior to the FIX and has less power.MW's answer, "Normal" I went to trade it in the other day on another make, the dealer said " have you had any turbo and or Fuel pump problems" Get for resale. They offered me $33,000 on a 07 loaded conv with 14K on it and flawless cond. Almost 50% in two years. That a way BMW! BWMNA won't even do a deal. For those that don't have Pacer. One already has been filed. |
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07-09-2009, 07:07 PM | #25 |
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I believe BMW is putting forth an honest effort in making durable engines and providing a "satisfactory" service interval.
However, BMW is in the business of selling cars - that being said, deep down they don't want them to last forever... |
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07-09-2009, 08:22 PM | #26 | |
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See what i posted in the parallel thread http://www.e90post.com/forums/showpo...44&postcount=4 |
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07-09-2009, 09:14 PM | #27 | |
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change you damned oil more often its worth the safety margin. is everyone really that lazy and cheap??
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07-09-2009, 09:16 PM | #28 | |
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yes I know the HPFP is not part of the engine itself, but obviously the engine is SOL w/ out the HPFP.
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07-09-2009, 10:04 PM | #29 |
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I agree an oil change is cheap insurance. Even at the dealer it's only a $100. 15k miles with the some oil on a turbo car is insane but thats just MHO.
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07-10-2009, 03:20 AM | #31 |
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I'm sure BMW is aware that 15K is not a safe oil chnage interval, but all they care about ti to get you to the end of your warranty period. After that its not their problem. I still think the main reason they have a 15K interval is because they are the ones having to pay for it under their "free maintenace program". From what I remember, the Audi RS4 is 10K even though it uses similar oil and is NA. Other Audi's are also 10K. Lexus IS's have shorter intervals too, all because its not covered under a "free maintenance program."
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07-10-2009, 07:21 AM | #32 |
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I'm sorry but your assumption is completely invalid. This is a new car and you WILL have higher than normal wear in the beginning. Come back to us after TWO more oil changes. If the levels have not decreased then you may have a point. The N54 isn't a high strung 4 Cyl found in many Asian cars. Seriously, come back after TWO changes, and change your heading. It's very Fox News-ish. This isn't a post about a study conducted by BMW.
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07-10-2009, 07:31 AM | #33 |
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True, but they have to make them last atleast 100k miles because the CPO market is VERY VERY important to their bottom line. Most people will unload theirs cars (regardless of brand) @ ~100k miles.
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07-10-2009, 07:55 AM | #34 |
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I added Redline 5W30 @ 1200 miles and again @ 5500 miles. I am now @ 10,500 miles and I am going to be changing my oil again any day now. Redline 5W30 of course. Aircraft quality synthetic with a flash point up over 400 degrees F. I won't be using BMW's "free oil change" but the rest of their free maintenance I will. Like new wiper blades every time I go in for service/repairs.
Waiting 12-15k miles is too long, but I don't know if you can change that. They allow you to change your own oil as often as you want. The car will last well over 100k miles even if you only let BMW change the oil every 15k. I think for anyone to care (like a court) engines would have to fail, due to the extended oil change intervals, well before 100k miles. |
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07-10-2009, 08:42 AM | #35 | |
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On a tangent... some ppl it seems don't know the difference between "oil service due" and "oil level low" and complain when a quart or 2 of top up is req between services. Internal combustion engines consume oil, have done for a while...the more efficient they become the more oil they consume due to lower friction oil scraper rings and higher compression ratios and pressures etc. BMW specs up2 0.7l/1000km oil consumption and up2 1.5l/1000km on M engines with "normal" usage. Porsche stipulates up2 1.5l/1000km of usage, MB specs 0.8l/1000km and also 1.5l/1000km for AMG...so next time you get a top up oil warning, instead of whinging about a design characteristic that you should have read about or at least experienced unless you were living under a rock for the last 10 years or so lol sorry for the rant but have heard this complaint quite a few times and cringe every time I hear/read it. Good luck with the challenge, personally I don't see it going anywhere, not with the small sample you have and the fact that possibly halve of the people that will join your campaign will have modified their cars in some way effecting the engine..including yours while you challenge an interval clearly meant for stock production vehicles.
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07-10-2009, 08:45 AM | #36 |
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07-10-2009, 08:53 AM | #37 |
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Oh and one more thing...the concept of high interval servicing was introduced long before free servicing. The idea was to reduce running costs for the consumer. Coming from the country that pioneered the free maintenance plans (called BMW Motorplan back in 93/94 in South Africa and then sold to all other markets after 2002) I remember there used to be a lot of people complaining that the longer intervals where because BMW SA wants to earn a cheap buck, yet BMW consumers around the world that actually paid their own maintenance costs embraced the concept. Now that they don't have to pay anymore in most big markets suddenly the intervals are too long...
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07-10-2009, 09:00 AM | #38 |
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free maintenance = bmw recommends oil change every 20,000 miles(my case)
no free maintenance = bmw recommends oil change every 3,000 miles it's all about saving $$$$$$ and making $$$$$$$$$$$
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07-10-2009, 09:03 AM | #39 |
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funny how that works
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07-10-2009, 09:05 AM | #40 |
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So the car and sensors can actually tell when the oil starts break down and needs to be changed? That's what sets the oil change interval? If that's the case then why after an oil chage the oil change indicator does not change? I just had mine done the other day, car still states it needs an oil change in 5k miles.
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07-10-2009, 09:14 AM | #41 | |
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07-10-2009, 09:17 AM | #42 |
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Your SA or whomever told you that needs to be shot or maybe they come from your location cos the only time an oil change is prescribed before or around 3000miles is during running in of an M vehicle. If it's not in the manual or officially from BMW AG or NA or other country HQ it's BS.
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07-10-2009, 09:20 AM | #43 | ||
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I'm surprised that everyone wants to argue this... Change your damn oil every 3000/4000/5000 miles (whatever suits your driving style)... Have a UOA done to make sure you are using the correct intervals and to uncover any major problems with the motor... Is it that hard to grasp?
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07-10-2009, 09:21 AM | #44 | |
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