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#31
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Help me to understand
Hello everyone, I am new to the MB world, however I'm not new to the diesel world. I am currently living in Stuttgart Germany, and will be picking up my new W211 CDI at the end of Feb or early March.
I have a question about oil changes. How many other diesel owners change their oil before the recommended 13,000 mile mark? Why dont you trust the R&D that MB has done on the I-6 on the distance that the engine can go before the scheduled oil change? What are some of the reason's you do/dont go the 13,000 miles? Personally, I will be adhearing to the 13,000 mile oil change, I figure that MB knows what is best for this engine, however, I'd like to hear your thoughts. Derek '06 E320 CDI (soon) '00 BMW 530d (5speed manual) |
#32
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When you go 13K on oil, the engine would have to be exceptionally clean for the oil to remain below 1% soot. I'd be real curious to see the soot loading in a CDI engine at 13K on oil. Additionally, don't have too much confidence in the M/B "engineers"? If the engine lasts 100K, they'll be satisfied. The warranty goes out well before that. |
#33
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Personel choice, I figure for a $50 investment it is pretty cheap insurance policy and no harm is done changing every 6500 miles works out to 1.5 times a year for me. I am sure after 13000 it will be fine if you do not do the the in between change. Has anyone tested the oil yet would be curious to see the results.
m
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Martin Ingram Colorado Springs 2005 320 CDI 2006.5 VW Jetta TDI 1991 560SEL (179000 Sold) 1972 280SEL 4.5 ('The Lead Sled' 320000 miles when sold.) 1972 220D (225000 when sold) |
#34
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I was going to work yesterday morning around 11:55am.....and right by my work I went past an intersection where a new MB was sitting waiting to turn.....then I went into a turn around to get into my work's driveway, and was waiting to cross there, and the guy went around the turn in the other lane, and it was a 320cdi from Indiana! I was like: " " The first one I'd ever seen in person!!! It was 23 years of MB diesel generation gap at a single traffic light. Pretty awesome.
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-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#35
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Derek_CDI do a search over at MB world, lots of members their have sent their oil to the lab. It seems that a lot of crap gets into the oil as the new engines clean themselves out in the first few changes. I think one member had his oil tested at like 7k and it came back over the limits in a few areas. The lab said do a few short changes then you can push them to 13k miles or more.
Basicaly if you plan on keeping the car for 5 years or 100k miles do 13k mile changes from day 1. If you plan on long term ownership do the first few sooner and work your way to the 13k miles.
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1999 SL500 1969 280SE 2023 Ram 1500 2007 Tiara 3200 |
#36
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I've seen the results of spectrochemical analysis on oil used for as long as 9,000 miles on some OM606 engines and the soot levels were actually at about 1% after such long use. Given that the CDI engines are even much cleaner, I'd say that going 13,000 miles on a CDI engine would be very possible because the soot level would probably still be below 2%. Also, regarding that 2% level, M-B engineers aren't the only ones that use that as the maximum soot level that should be allowed in engine oil. I've read that figure from all sorts of diesel engine manufacturers, so it seems to be a universally accepted figure.
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1999 Mercedes-Benz S600, 103K miles - garage queen 1988 Mercedes-Benz 560SEL, 89K miles - daily driver 2007 Hyundai Sonata Limited, 31K - daily driver |
#37
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Now, whether the generally accepted level of 2% is universally acceptable is a completely different discussion. We have no information as to how durable an engine will be at this level. It may last 400K miles and this longevity may be considered more than acceptable. However, the last 100K may be operated with marginal compression due to liner wear. Personally, if I can limit the wear on the engine by changing the oil when the soot reaches 1%, I will do it, provided the cost of the change is not excessive. Look at it this way: You have a $6K engine and are attempting to delay a $30. oil change.............doesn't make a whole lot of sense. In the case cited, whereby the soot levels climb above 1% within 3K miles, I would make the switch to dino oil and change the oil every 3K. |
#38
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I can see your point of view more clearly now. It seems like this is really a struggle of whether one intends to keep their car forever or not. 400K miles is quite a lot of miles to rack up on ANY car. Indeed, I can't see any manufacturer purposefully engineering a car to last that long, especially not in today's cost conscious and extremely competitive industries. So the 2% soot level that is universally accepted may be good for lesser miles that that. And after reading that M-B engineers make those newer transmission that are sealed for life with "life" being 150K miles, I can truly see how the 2% soot level may not be fit for much higher miles.
Bottom line: this is all about how long one intends to keep the car in question.
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1999 Mercedes-Benz S600, 103K miles - garage queen 1988 Mercedes-Benz 560SEL, 89K miles - daily driver 2007 Hyundai Sonata Limited, 31K - daily driver |
#39
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If you have interest in keeping the machinery operating for the longest possible term, within reason, whether owned by you or another individual after you, then you will make the expenditure of the few cents required in the short term, within reason. If you intend to get another 100K from the engine and then sell/dispose of the vehicle, why bother to change the oil at all? I'm sure that synthetic oil will go 100K in a 617 if wear is not a consideration. |
#40
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That's true. Many of us won't own the cars for even 100,000 miles. Anything can happen and end the ownership. Mine just about came to an end a few months ago but I decided against it with my wallet. I'm not in a dire financial situation, but if I were in one, I'd only worry about the state of the car during MY ownership and not for future owners. Whether most people admit it or not, once the $$$ supply runs short, that's all people will think of. Ultimately these are machines meant to serve their owners. I would like to make my car last long because I don't exactly know when I'll give it up. But many people don't do that. They just make sure it works while they have it and hopefully works the day they sell it. When you purchase a used car, you basically agree to take on all liabilities attached to it. Otherwise, just go and buy a new one. We all know that.
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1999 Mercedes-Benz S600, 103K miles - garage queen 1988 Mercedes-Benz 560SEL, 89K miles - daily driver 2007 Hyundai Sonata Limited, 31K - daily driver |
#41
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I'll bet that this is more common than most realize. |
#42
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My uncle has never poped the hood once on his 325I. Why should he waste his time? BMW covers all the maintaince all he does is drop it at the dealer every 10k miles and they do their thing. In 1-2 years it will be traded in on a newer one.
It depends on how much you care about a car, I just changed the oil in my SD for the first time since June. Now granted it sat a lot but still. Maybe I'll change it next year but if I am going to sell it I'd rather keep the $20 in my pocket.
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1999 SL500 1969 280SE 2023 Ram 1500 2007 Tiara 3200 |
#43
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#44
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1999 Mercedes-Benz S600, 103K miles - garage queen 1988 Mercedes-Benz 560SEL, 89K miles - daily driver 2007 Hyundai Sonata Limited, 31K - daily driver |
#45
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All just a quick update. the E320cdi has 45000 on it now and running well. I have gone to the 13000 mile oil changes since 26000 and seen no problems. No warranty work since my last update so am very happy. Still averaging about 35 mpg on the highway and 25 in the city. I have a heavy foot and live at 6000 feet. I have been running B20 for the last 20000 miles with no problems. I get the Bio from Bluesun (http://www.gobluesun.com/). I run it in the Jetta TDI as well. By the way I did get the ipod kit and installed it myself takes about 4 hours the first time, could do it in 2 now. It really is worth it. Also had the front seat adjusted so the seat belt sensor is nt so sensitive and all is well.
m
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Martin Ingram Colorado Springs 2005 320 CDI 2006.5 VW Jetta TDI 1991 560SEL (179000 Sold) 1972 280SEL 4.5 ('The Lead Sled' 320000 miles when sold.) 1972 220D (225000 when sold) Last edited by mhingram; 05-05-2007 at 04:28 PM. |
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