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Keep an eye on Iron and Copper in the next one. When I switched to Rotella T6 in my GMC pickup, I've noticed iron wear increases in the last 2 oil changes, as yours also shows. If the next one shows the same trend, I'll be going back to DT40 in that too. Was trying to save a few bucks on the truck that has 200k miles on it, but won't at the expense of engine wear.
Im not too worried about a part or two per million change but you’re right, if I see it consistently creep up I’ll go back to what the oil was when I bought it and see how it changes. I really prefer how much quieter the car runs with rotella though.
Originally Posted by Petza914
What are you going to switch to? The Iron number is trending up a bit for so few miles on the oil.
The miles are almost identical on oil changes by chance so as I just mentioned I’m not worried about one or two ppm shift. I’m going to keep an eye on viscosity, tbn, iron, silicon, and aluminum to see how the fair. As it sits I’m perfectly fine with the readout.
I don’t expect identical numbers each and every time. If it stays within the same little range I’ll be fine. These two reports are two different oils, so I’ll run this for three or four oil changes and see the numbers and adjust if needed.
Oil in the car for unknown length of time. Oil brand unknown, had it in the car when I bought it. Drained at 51,5109, sent for analysis. Refilled with LM Leichtlauf 5w-40 and LM MOS2 to one bar under full.
Oil in the car for unknown length of time. Oil brand unknown, had it in the car when I bought it. Drained at 51,5109, sent for analysis. Refilled with LM Leichtlauf 5w-40 and LM MOS2 to one bar under full.
Looks like M1 0W/40 from the low viscosity numbers, Zinc & Phosphorous #s in the mid 800-900s and virtually no Moly. From the wear metals and TBN number, doesn't look like it was in there very long, maybe 1,000 miles. Glad you've moved onto something that should be better.
Here is my first oil analysis...
Background: 08 C2S just over 78K Miles (purchased a couple miles over 75k Clean PPI including borescope) oil life was 3,262mi Motul X-Cess 5w-40 with MosO2 added in with the LN adapter running a Napa gold filter that was done at Indy before purchase after she passed the PPI. She went through 3Qts of oil which was about 1k miles per qt...not too concerned about that because of milage and its a weekend car that is driven aggressively once warmed up.
Overall, I think the report is good, but would like to hear options of others in this thread. I will continue to post my results, but it may take awhile since I’m on the 6mo or 3k oil service plan lol.
Thanks
Here is my first oil analysis...
Background: 08 C2S just over 78K Miles (purchased a couple miles over 75k Clean PPI including borescope) oil life was 3,262mi Motul X-Cess 5w-40 with MosO2 added in with the LN adapter running a Napa gold filter that was done at Indy before purchase after she passed the PPI. She went through 3Qts of oil which was about 1k miles per qt...not too concerned about that because of milage and its a weekend car that is driven aggressively once warmed up.
Overall, I think the report is good, but would like to hear options of others in this thread. I will continue to post my results, but it may take awhile since I’m on the 6mo or 3k oil service plan lol.
Thanks
That report looks really good for a first one. The only thing I don't like is the 10 ppm of Iron, but I wouldn't worry about it in a single report. Let's see what the next one looks like 6 months from now. I bet it comes down a bit.
These reports are really starting to confuse me. I use Motul Xcess 5-40 over my last 5 reports on 4000 - 4200k mile one year intervals. My iron ranges from 10-15ppm; alum 4-6; copper 5-10 and (not consecutively increasing, just varying) and I basically do not burn a drop of oil, no major soot etc. between changes. This last report of Scalp em shows better numbers yet goes thru a quart every 1k miles? - go figure. I plan on adding Ceratec and see what that does for my wear numbers .
These reports are really starting to confuse me. I use Motul Xcess 5-40 over my last 5 reports on 4000 - 4200k mile one year intervals. My iron ranges from 10-15ppm; alum 4-6; copper 5-10 and (not consecutively increasing, just varying) and I basically do not burn a drop of oil, no major soot etc. between changes. This last report of Scalp em shows better numbers yet goes thru a quart every 1k miles? - go figure. I plan on adding Ceratec and see what that does for my wear numbers .
Any input on Liqui Moly 5W-40, 2006 911 S (98k mile), overall healthy engine with about 3,500 mile oil change intervals? Thanks all, I've been reading/studying these oil charts, very helpful!
Covid oil change: Miles on sample 2749; Amsoil 5W-40 European; Filter OE
Wear levels look normal, but the 1.6% fuel dilution is a problem. Should not be anything more than 0.5%. Do you do short drives by chance or let the car idle to warm up? I also see that the engine had to be topped off for oil - it's possible the fuel dilution is causing the oil consumption.
I would not be surprised if you have a bad injector or a vacuum leak somewhere in the intake. Likely the oil fill tube or an AOS vent tube if I were to guess. Smoke testing the intake and looking at fuel trims might be well advised.
Wear levels look normal, but the 1.6% fuel dilution is a problem. Should not be anything more than 0.5%. Do you do short drives by chance or let the car idle to warm up? I also see that the engine had to be topped off for oil - it's possible the fuel dilution is causing the oil consumption.
I would not be surprised if you have a bad injector or a vacuum leak somewhere in the intake. Likely the oil fill tube or an AOS vent tube if I were to guess. Smoke testing the intake and looking at fuel trims might be well advised.
Charles, wouldn’t a vacuum leak or bad injector cause a CEL or only if large leak?
No I do not let her idle before taking off; I'm backing out within 10 seconds. I also do not take many short drives. Even my drive to pick up milk 3 miles away takes over 30 min due to a "detour".
Some corrections on my submission that may provide some additional data points:
I tend to put in approx 8oz of oil between oil changes. I'm not sure if I fat fingered 16 or not in my submission.
This is also the first time (oil run) I added a bottle of Amsoil P.I. performance improver additive to the gas the tank before I did the oil change. This is also the first time i used their "upper cylinder lubricant" within the oil sample date (2 bottles iirc). I'm unsure if this skewed the data points...
All that being said I've been toying with the idea of getting a more up-to-date tune on her as the one that is on came with the F77 package back in 2012.
v/r
Mike
Originally Posted by Charles Navarro
Wear levels look normal, but the 1.6% fuel dilution is a problem. Should not be anything more than 0.5%. Do you do short drives by chance or let the car idle to warm up? I also see that the engine had to be topped off for oil - it's possible the fuel dilution is causing the oil consumption.
I would not be surprised if you have a bad injector or a vacuum leak somewhere in the intake. Likely the oil fill tube or an AOS vent tube if I were to guess. Smoke testing the intake and looking at fuel trims might be well advised.
01-06-2021, 11:44 AM
