13 Month/7.5K oil filthy, black. - Mercedes-Benz Forum

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post #1 of 18 (permalink) Old 07-12-2007, 10:51 AM Thread Starter
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13 Month/7.5K oil filthy, black.

I decided to ignore the FSS and change the oil after only 7,500 miles and 13 months. I do mostly short trips. The oil was very dirty with visible particles on the fleece filter. Any thoughts, the car does not smoke and did not use a drop of oil in 13 months.
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post #2 of 18 (permalink) Old 07-12-2007, 01:58 PM
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Blackstone Labs just performed an analysis on my 13,000 mile oil to which I had added 4 quarts; the sample I sent them looked pretty dark to me, but the test results were pretty good.

They told me to change mine again after 7800, but did not give me a time frame. Does you car require a fleece filter, because I don't think my 2001 does? Hope this helps.

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post #3 of 18 (permalink) Old 07-12-2007, 02:37 PM
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Gents,

Let's clear up a couple of things...

First, MM, your car ABSOLUTELY requires the fleece filter, unless you're also deciding to use Dino oil and change it every 3,000 or 3,500 miles. Fleece goes with synthetic the way babies go with nightime feedings. (Post 1998 MB went to synthetic/fleece...)

Second, II Kings 920, oil should look dirty, and it will often do so even after just a couple of thousand miles. Detergent motor oils are designed to collect dirt and carry it through to the filter and suspend particles that are even too small for the filter media. So if it's black, that means it's doing it's job. If you want to be sure and still have a sample, send it in to a lab for analysis, I understand there are some who will do a single, first-time sample for free. As far as the filter, I can't recall ever seeing particles collected on a filter. Did you buy the car new? I'm wondering if some enterprising sort dumped a slick-50 style additive in there and that's what's floating around. Certainly a possibility. I think I might change the filter and top up the oil in perhaps 2,500 miles or so, if it still looks that way I'd definitely send in a sample for analysis.

Okay, I'm off to look up that Biblical reference, so take care and enjoy the ride,
Greg

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post #4 of 18 (permalink) Old 07-12-2007, 02:47 PM
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Originally Posted by gregs210
MM, your car ABSOLUTELY requires the fleece filter, unless you're also deciding to use Dino oil and change it every 3,000 or 3,500 miles. Fleece goes with synthetic the way babies go with nightime feedings. (Post 1998 MB went to synthetic/fleece)
Thanks for the info Greg. I thought I was reading a thread post somewhere on here that said the change to fleece was for newer model years than mine. If I even remember that it exists correctly, it is obviously mis-information.

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post #5 of 18 (permalink) Old 07-12-2007, 04:22 PM
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Originally Posted by Musikmann
Thanks for the info Greg. I thought I was reading a thread post somewhere on here that said the change to fleece was for newer model years than mine. If I even remember that it exists correctly, it is obviously mis-information.
They might also have been discussing diesel engines, which use different oil and a paper filter. There was one a while back that I was puzzled about until I saw that it was an oiler.

Take care and enjoy the properly-lubricated (but not "oiled") ride,
Greg

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post #6 of 18 (permalink) Old 07-12-2007, 04:23 PM Thread Starter
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Thanks guys, I will certainly go no longer than 7.5K and will do an analysis on the new oil in a few K (the old stuff is mixed in my big jug with trans and diff fluid). One of many advantages to having a Fumoto drain valve is you can drain a ny amount with the release of the lock lever. No worries with overfilling the crank case either.

I did not buy it new but the oil last June did not seem so dirty.

It's an 00 S430. Musik, if you added 4 qts in 13K that's more than half the volume on an E, my old e used a qt in 6K with 150K on the clock. My S430 took just over 9 qts but is supposed to take only 8.5.

"And the watchman told, for the driving is like the driving of Jehu son of Nimshi, for he driveth furiously" II K 9:20
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post #7 of 18 (permalink) Old 07-12-2007, 04:37 PM
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Quote:
Originally Posted by II kings 920
Thanks guys, I will certainly go no longer than 7.5K and will do an analysis on the new oil in a few K (the old stuff is mixed in my big jug with trans and diff fluid). One of many advantages to having a Fumoto drain valve is you can drain a ny amount with the release of the lock lever. No worries with overfilling the crank case either.

I did not buy it new but the oil last June did not seem so dirty.

It's an 00 S430. Musik, if you added 4 qts in 13K that's more than half the volume on an E, my old e used a qt in 6K with 150K on the clock. My S430 took just over 9 qts but is supposed to take only 8.5.

"And the watchman told, for the driving is like the driving of Jehu son of Nimshi, for he driveth furiously" II K 9:20
Hey, Jehu .

I see you're a KJ guy by the "driveth" reference. I did go look that up, it's pretty good.

Re: MM's oil consumption, he's got a thread somewhere discussing it. It was pretty intense for a while and has gotten better; he's got a CPO with a warranty so at some point they'll have to treat him right. (Like you I see very little consumption, usually only have to add one quart in my E between changes.)

Re: intervals, I don't know that I'd necessarily change it out at 7,500 miles. It would probably "look" just as bad if you drained it at 4 or 5,000. If you're open to a respectful suggestion, I think if I were you and thus couldn't know the exact history of the car I'd probably pull the filter out and look at it someplace around 5,000 miles since your last change and see if you notice any of the speckling. Since you have a vacuum pump then while you have the filter assy. out you could stick your pump tube down where the assembly goes and withdraw a little oil for analysis. Then you'd know exactly what you were dealing with, if they find lots of teflon, for example, you could then surmise that someone did dump in one of those teflon slick-50 type additives. That said, If the filter was speckled again I'd probably just go ahead and do an oil and filter change at that point, just to be sure, as you'd get more of that black stuff out. (In all honesty, if there was more evidence of speckling I'd probably drain the oil so I could let it drip and get more of the particulates out of there.)

Take care and enjoy the ride,
Greg

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post #8 of 18 (permalink) Old 07-12-2007, 05:05 PM
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Originally Posted by gregs210
Re: MM's oil consumption, he's got a thread somewhere discussing it. It was pretty intense for a while and has gotten better; he's got a CPO with a warranty so at some point they'll have to treat him right. (Like you I see very little consumption, usually only have to add one quart in my E between changes.)
My thread was right here, on General Mercedes-Benz, because so many MBs use the 320 (M112 I believe) engine.

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post #9 of 18 (permalink) Old 07-12-2007, 07:13 PM
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Freshly changed oil in my 300SD and 300D turns pitch black after 1mile/10 minutes. But this is normal for these diesels. Many new diesel owners initially panic.
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post #10 of 18 (permalink) Old 07-13-2007, 09:38 AM
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Quote:
Originally Posted by II kings 920
I decided to ignore the FSS and change the oil after only 7,500 miles and 13 months. I do mostly short trips. The oil was very dirty with visible particles on the fleece filter. Any thoughts, the car does not smoke and did not use a drop of oil in 13 months.
You only went over by one month BUT, in case you didn't know, motor oil has to be changed every twelve months. That is regardless of the mileage. I thought the FSS kept track of time and mileage, but I can't check it because I drive too much. If I'm not mistaken, the filter is the reason for the 12 month cutoff. The fleece is a fantastic filter, but I think I read somewhere that even it starts to deteriorate after a twelve month oil bath.

It’s a shame about Jehu. Things looked so good in II Kings 10:30, then came 10:31 . . . . .

Last edited by MarcusF; 07-13-2007 at 09:55 AM.
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