Oil analysis shows silicon. What is going on?
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2018 GLC 4MATIC
Oil analysis shows silicon. What is going on?
Hello friends!
I just received the oil analyse report and it show high silicon value. No work on the engine was done, the last thing what I have done was the fuel filter replacement.
at the same time Air filter and some orange seals (on turbo, on each side for air filter, and one green o-ring on turbo resonator) were replaced as well.
Any idea what might be wrong?
I have report attached to this post.
I just received the oil analyse report and it show high silicon value. No work on the engine was done, the last thing what I have done was the fuel filter replacement.
at the same time Air filter and some orange seals (on turbo, on each side for air filter, and one green o-ring on turbo resonator) were replaced as well.
Any idea what might be wrong?
I have report attached to this post.
Last edited by DanD.; Jan 4, 2018 at 10:20 AM.
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2018 GLC 4MATIC
Originally Posted by rcsjr
aren't the sleeves impregnated? i seem to remember a big thing about that when the new engines came out, but i could be way wrong? did dealer do the analysis? ron
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Originally Posted by Etienne Lau
Silicon sometimes signifies sand/dirt? Is it possible your air filter is not a good/adequate at filtering out stuff?
Oil was changed at 3.5K miles mark.
Planning to do another sample in a few weeks.
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Originally Posted by alexanderfoti
12 isnt a huge amount.
I would suspect its caused by one of those seals that you have since replaced.
I would suspect its caused by one of those seals that you have since replaced.
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Seeing as the iron is also a bit high for only 3400 miles, it is most likely due to wear caused by fine dust / dirt getting into the engine as the Blackstone tech and someone else here previously indicated. I too have seen this a fair bit with people using K&Ns for example. Keep an eye on it now that you've replaced the seals and air filter and see if it drops at the next oil change. What oil are you using?
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Originally Posted by Diabolis
Seeing as the iron is also a bit high for only 3400 miles, it is most likely due to wear caused by fine dust / dirt getting into the engine as the Blackstone tech and someone else here previously indicated. I too have seen this a fair bit with people using K&Ns for example. Keep an eye on it now that you've replaced the seals and air filter and see if it drops at the next oil change. What oil are you using?
Mb Genuine Engine Oil. 229.52
Im getting it from MB dealer.
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Despite the long service life claims, 229.52 oils offer a somewhat shorter "realistic" change intervals than 229.51 oils, but if you keep the oil in service for only 5K miles you're not going to wear out the additives or dilute it to the point where you're compromising on engine protection so you're good. Obviously, doing UOAs is the best way to determine how much life is left in the oil (and have a look at your engine health), so you're way ahead of the curve.
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Mind you, if you're in the USA, you do want the 229.52 oils because of your high biodiesel content. We still mostly get the good ole dinosaur juice here.
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Originally Posted by Diabolis
I gather the "Mobil 1" before the oil part # is a typo. I don't know who makes and/or blends the MB-branded 229.52 oil (the 229.51 one was and probably still is made by Shell), and while not exceptional, they are at least decent.
Despite the long service life claims, 229.52 oils offer a somewhat shorter "realistic" change intervals than 229.51 oils, but if you keep the oil in service for only 5K miles you're not going to wear out the additives or dilute it to the point where you're compromising on engine protection so you're good. Obviously, doing UOAs is the best way to determine how much life is left in the oil (and have a look at your engine health), so you're way ahead of the curve.
Despite the long service life claims, 229.52 oils offer a somewhat shorter "realistic" change intervals than 229.51 oils, but if you keep the oil in service for only 5K miles you're not going to wear out the additives or dilute it to the point where you're compromising on engine protection so you're good. Obviously, doing UOAs is the best way to determine how much life is left in the oil (and have a look at your engine health), so you're way ahead of the curve.
Bottle and case looks like this one
https://images-na.ssl-images-amazon....L._SL1500_.jpg
Hope iron and silicon will get down at the next sample. Will do it at 3K. So worry about what is going on with the engine.
