My 13,000 mile engine oil analysis - Mercedes-Benz Forum

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post #1 of 49 (permalink) Old 06-20-2007, 11:01 PM Thread Starter
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Thumbs up My 13,000 mile engine oil analysis

Hello Friends,

Please have a look at this. It looks pretty good to me, and to the Blackstone tech who interpreted the results; I called them for some clarification, and by coincidence, spoke with the same tech who wrote this interpretation.

The gasoline additive involved is Chevron Techron Concentrate in the mfg. recommended concentration. Any and all comments are welcome. Last but not least, many thanks to a good friend who has full Adobe and who expunged my personal data.

Mm
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post #2 of 49 (permalink) Old 06-20-2007, 11:51 PM
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Silicon comes only from bad air filter, or is there another source on the engine?
Any data is worthless without professional interpretation?
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post #3 of 49 (permalink) Old 06-21-2007, 11:09 AM Thread Starter
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I do not know the answer to your silicon question, but the guy did say that some of the trace metallic elements are already in the oil when it is virgin.

I think you are correct regarding the interpretation. Although the aluminum and iron levels are right on the average when compared to all M113 engines they have tested (column directly to the right), I am a little unclear about the universal averages and their significance.

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post #4 of 49 (permalink) Old 06-21-2007, 11:16 AM Thread Starter
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By the way, I am not trying to prove anything by posting this data. However, it has convinced me to have an oil change half-way between the FSS approximate intervals of 12,000 miles as Blackstone suggested. I think a lot of the members here are doing that anyway, and those 13,000 miles are the 1st ones I have put on the car, so this was a test. As far as I know most, if not all, of the previous changes were performed according to the FSS.

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post #5 of 49 (permalink) Old 06-21-2007, 12:01 PM
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Quote:
Originally Posted by Musikmann
those 13,000 miles are the 1st ones I have put on the car
... meaning this was your "break in" oil. Can explain some "extra" elements for sure.

Not a particularly representative sample, then, but if anything evidence that a 13K change interval ought to be just fine

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post #6 of 49 (permalink) Old 06-21-2007, 12:19 PM
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Quote:
Originally Posted by Musikmann
By the way, I am not trying to prove anything by posting this data. However, it has convinced me to have an oil change half-way between the FSS approximate intervals of 12,000 miles as Blackstone suggested. I think a lot of the members here are doing that anyway, but those 13,000 miles are the 1st ones I have put on the car, so this was a test. As far as I know most, if not all, of the previous changes were performed according to the FSS. ... (many thanks to a good friend ...)
Hey, MM.

I think you had said you were adding quite a bit of oil as well, and particularly fairly recently, so I'd tend to think that might make your oil look much better than if it were simply 8.5 quarts that ran out for that long with only a quart or two added at regular intervals. That much dilution late in the game would tend to (1) to extend the FSS interval as well as (2) favorably skew the resulting data in the oil analysis.

Re: the silicone, I don't know if that might be part of a compound in the techroline; hopefully the lab knows if it could be found in Mobil1's base pack of additives, did you happen to ask them about that?

How many oil changes have you owned your car? Your last post suggests this is the first oil change since you've owned it, so it would be interesting to see if silicone shows up in the next one. For some reason I thought you'd had your car for a few years.

Lastly, you've been holding out on us: you have friends!??

Take care and enjoy the ride,
Greg

Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy; its inherent virtue is the equal sharing of misery. (Winston Churchill)

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post #7 of 49 (permalink) Old 06-21-2007, 01:03 PM Thread Starter
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Cool Hey Greg

Quote:
Originally Posted by gregs210
Hey, MM. I think you had said you were adding quite a bit of oil as well, and particularly fairly recently, so I'd tend to think that might make your oil look much better than if it were simply 8.5 quarts that ran out for that long with only a quart or two added at regular intervals. That much dilution late in the game would tend to (1) to extend the FSS interval as well as (2) favorably skew the resulting data in the oil analysis.
Absolutely Greg, and all I told them was that I added 4 quarts since the last known oil change. I did not point out that those were during the last ~2000 miles. Right again Robin! (1) For every fresh quart I added, the FSS jumped back 1000 miles exactly; it therefore said I had 4000 miles to go when I had them do the change and the "B" service. (2) The oil had to look a lot better under those circumstances.

Quote:
Re: the silicone, I don't know if that might be part of a compound in the techroline; hopefully the lab knows if it could be found in Mobil1's base pack of additives, did you happen to ask them about that?
As you can see, they were unclear as to whether, or not, the Techron contributed to the Al and Fe elements. They did not mention anything else, so that leads me to believe they don't know the Chevron "secret formula". And no, I did not ask them, nor did the guy make any mention of silicon. If anyone here is that curious, I'll gladly call them back and ask.

Quote:
How many oil changes have you owned your car? Your last post suggests this is the first oil change since you've owned it, so it would be interesting to see if silicone shows up in the next one. For some reason I thought you'd had your car for a few years.
This is the 1st oil change since I bought the CPO car w/53,000 in June, 2006. I have (what I believe to be) the complete service history, and only once was it serviced w/o regard to the FSS interval. What I don't know are what services were performed at the time.

Quote:
Lastly, you've been holding out on us: you have friends!?? Take care and enjoy the ride, Greg
Haha, sure! gregs210, kajtek1, tirona, loubapache, sosh, Debbibaron, acarter53, Diego97, lkchris (all of whom have generously been following my ordeal - and I hope I am not forgetting too many others), and a host of other miscreants on Benzworld.org

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post #8 of 49 (permalink) Old 06-21-2007, 02:04 PM
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Quote:
Originally Posted by Musikmann
By the way, I am not trying to prove anything by posting this data. However, it has convinced me to have an oil change half-way between the FSS approximate intervals of 12,000 miles as Blackstone suggested. I think a lot of the members here are doing that anyway, and those 13,000 miles are the 1st ones I have put on the car, so this was a test. As far as I know most, if not all, of the previous changes were performed according to the FSS.
Quote:
Originally Posted by Musikmann
This is the 1st oil change since I bought the CPO car w/53,000 in June, 2006. I have (what I believe to be) the complete service history, and only once was it serviced w/o regard to the FSS interval. What I don't know are what services were performed at the time.
If this is the first oil change in what is now over 12 months, then perhaps in your case, mileage isn't the trigger for an oil change - time is. Unless I'm mistaken, regardless of the mileage, the oil has to be changed every 12 months. I can double check this when I get home and have access to my maintenance booklet.
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post #9 of 49 (permalink) Old 06-21-2007, 03:45 PM Thread Starter
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Quote:
Originally Posted by MarcusF
If this is the first oil change in what is now over 12 months, then perhaps in your case, mileage isn't the trigger for an oil change - time is. Unless I'm mistaken, regardless of the mileage, the oil has to be changed every 12 months. I can double check this when I get home and have access to my maintenance booklet.
Marcus,

As always, I would appreciate any comments you care to make.

GO PORSCHE!

Mm

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post #10 of 49 (permalink) Old 06-21-2007, 04:58 PM
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I went to a health fair today which was held at a vocational rehabilitation college campus. They train low IQ people (for a lack of better word) a simple trade so that they can get jobs and support themselves. I talked with the service department teacher/instructor and was amazed to learn that I can buy my own oil and filter and bring it to them and they would do all the work for only $12 labor! They would wait until every drop of oil has leaked out and told me that I could wait half an hour if I wanted to to make sure that all the oil had leaked out before topping it off with new oil. I thought that was amazing as I really for some reason just can't bring myself up to using the suctioning method of oil change the dealers do. I'm old fashioned and have to DRAIN every drop. $12 only! WOW! And I can stand and watch so no mistake is made! $12 is great if you don't have a ramp or access to a life and besides, what are you going to do with your used oil, unless you have a diesel?
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