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Blackstone analysis results - thoughts on soot control
From this analysis it appears that I need to be working on getting soot levels down.
What can be done to help control soot?
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95 E300 Diesel 200K Last edited by drgreenthumb; 10-25-2007 at 03:11 PM. |
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where does it show your soot levels are high?
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
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You're paying for an uber-premium oil - - use it and stop adding to the waste oil reclamation issue and reap the potential savings available to you. FWIW, that's a great UOA, numbers look very good. Also, Wise Man removes personal info from UOA before posting on the internet!
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1998 W210 diesel (wiped out by a texter) Baum spring compressor "for rent" |
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I did change the oil too early. This is the first fill I put into the car and I do not have a history on what was used before. My concern was that if the PO did not care for the car, the M1 would loosen a ton of crud. Going forward I will not be changing the oil this often. Go here for uber premium oil. Who's gonna pull the trigger on a $100 oil change? www.renewablelube.com I was wondering how you knew my name. That's what I get for posting from work on a very busy day.
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95 E300 Diesel 200K |
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I'm staying out of the debate of what your soot levels mean or how high or low you can go.
To answer your question on what can be done to control soot levels in your oil, you need to control them at the tail pipe. to keep soot levels down make sure you have the following. A clean air filter. proper or higher than spec boost level clean and functional injectors. A little soy bean oil based biodiesel (B2,B20,B100) is supposed to help too
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green 85 300SD 200K miles "Das Schlepper Frog" With a OM603 TBO360 turbo ( To be intercooled someday )( Kalifornistani emissons ) white 79 300SD 200K'ish miles "Farfegnugen" (RIP - cracked crank) desert storm primer 63 T-bird "The Undead" (long term hibernation) http://ecomodder.com/forum/fe-graphs/sig692a.png |
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Now that's a very different discussion. I would have have changed at 5k miles, too. You can run up to 1.0% soot without issues or concerns. This is evidenced by ultra-low wear numbers. What is Terry trying to say is acceptable? I guess we're missing that tidbit. I've looked at hundreds of diesel automobile UOAs. This one shows a good running car. I see no major concerns.
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1998 W210 diesel (wiped out by a texter) Baum spring compressor "for rent" |
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I'd recommend you get the test kits from Performance Analysis, owned by Mr. George Murphy, who is the Technical Advisor for MBCA. I also used Blackstone in the past, but when I found they didn't provide soot levels I switched.
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Respectfully, /s/ M. Dillon '87 124.193 (300TD) "White Whale", ~392k miles, 3.5l IP fitted '95 124.131 (E300) "Sapphire", 380k miles '73 Balboa 20 "Sanctification" Charleston SC |
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My understanding of the Blackstone analysis is that the insolubles represent the soot level among other contaminants and as long as they are below the threshold shown you are OK. The entire analysis really doesn't look bad to me at all, especially with an engine that has 165K miles on it already.
Did you inform them that this was a first use of synthetic oil before they analyzed it? You might expect numbers to be slightly higher in the first use of synthetic oils so I would not get too excited at this point. How about you drive another 5K miles and draw a sample for analysis to compare? That way you would know if your results are an anomoly or not.
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Marty D. 2013 C300 4Matic 1984 BMW 733i 2013 Lincoln MKz |
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The reason Terry wants his comments to remain confidential is because there are people who are reverse engineering his work. This results in a loss of his business. I am trying to respect that even though I did pay for the analysis and consultation and it is mine.
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95 E300 Diesel 200K |
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Oil analysis on the new car
I sent to Performance Analysis samples of engine and transmission oil from the new-to-us 1996 E300D (W210). Both were probably dino oils and I replaced them with Mobil-1 synthetics. The car and its original engine and tranny have 248,220 miles on them. I don't know the miles on the oils because I didn't get that information from the PO. It is likely that all the miles on this car were accumulated using petrodiesel; almost all of mine will be biodiesel -- B100 here in Santa Rosa -- and petrodiesel on the road, out of town (unless I get lucky).
Both samples look good. I noticed that the reports don't include any units (probably PPM) and that there are no references or ranges supplied for the various factors. The info sheets sent me by George Murphy give the results of ten years of the oil analysis program (1984-1994). My numbers look good compared with the "average" numbers for 173 NA diesels included in the ten years of data. I'll send in another engine oil sample after 5000 miles (requesting TBN) and will not change the engine oil until the analysis suggests that it is time. That will give me time to figure out what all the numbers mean. Jeremy
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
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