Another oil analysis
#273
Hello everyone, enclosed is my analysis. I use Motul X-Power 10W60 and it is the second analysis after an engine overhaul (Nickies, closed deck, Hartech-System). The mileage of the new engine is now 23,300km, the analysed oil has 9,000km. Apart from the copper content, nothing worries me, the analysis shows 70ppm copper (!!) as normal. Copper comes from the crankshaft bearings and i am worried, it's heavy wear?! What is your opinion?
Forgot to mention: The first analysis was similar, exept copper was 80ppm and they recommended to change the oil.
Forgot to mention: The first analysis was similar, exept copper was 80ppm and they recommended to change the oil.
Last edited by 8x57IRS; 03-14-2022 at 01:24 PM.
#274
RL Community Team
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Rennlist Member
Hello everyone, enclosed is my analysis. I use Motul X-Power 10W60 and it is the second analysis after an engine overhaul (Nickies, closed deck, Hartech-System). The mileage of the new engine is now 23,300km, the analysed oil has 9,000km. Apart from the copper content, nothing worries me, the analysis shows 70ppm copper (!!) as normal. Copper comes from the crankshaft bearings and i am worried, it's heavy wear?! What is your opinion?
Forgot to mention: The first analysis was similar, exept copper was 80ppm and they recommended to change the oil.
Forgot to mention: The first analysis was similar, exept copper was 80ppm and they recommended to change the oil.
#275
Rennlist Member
LTFT are 4.7 on bank 1 and 1.6 on bank 2. I believe I pulled the correct data. The other option I saw was Furl Trim mean values, but based on the video on the LN YouTube channel I believe LTFT is what you were directing me to check.
#276
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Hello everyone, enclosed is my analysis. I use Motul X-Power 10W60 and it is the second analysis after an engine overhaul (Nickies, closed deck, Hartech-System). The mileage of the new engine is now 23,300km, the analysed oil has 9,000km. Apart from the copper content, nothing worries me, the analysis shows 70ppm copper (!!) as normal. Copper comes from the crankshaft bearings and i am worried, it's heavy wear?! What is your opinion?
Forgot to mention: The first analysis was similar, exept copper was 80ppm and they recommended to change the oil.
Forgot to mention: The first analysis was similar, exept copper was 80ppm and they recommended to change the oil.
What's in My Oil? Webinar presented by Jake Raby of Flat 6 Innovations
#277
That is first of all conclusive. Now brass is an alloy of copper and zinc. The oil itself, of course, has a high proportion of zinc, so you only see the wear in the copper-content. If you knew the alloy of the cage and there was no zinc in the oil, you would then certainly be able to see a proportionality in the values -- if it was the cage. For interest, I could analyse a fresh oil sample for zinc to get the zero condition...It is a very exciting topic ;-)
#278
RL Community Team
Rennlist Member
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I have received an explanation. "The bearing cage of the special IMS-bearing is made of brass. The main bearings are not affected, wear would be seen in increased tin and lead contents."
That is first of all conclusive. Now brass is an alloy of copper and zinc. The oil itself, of course, has a high proportion of zinc, so you only see the wear in the copper-content. If you knew the alloy of the cage and there was no zinc in the oil, you would then certainly be able to see a proportionality in the values -- if it was the cage. For interest, I could analyse a fresh oil sample for zinc to get the zero condition...It is a very exciting topic ;-)
That is first of all conclusive. Now brass is an alloy of copper and zinc. The oil itself, of course, has a high proportion of zinc, so you only see the wear in the copper-content. If you knew the alloy of the cage and there was no zinc in the oil, you would then certainly be able to see a proportionality in the values -- if it was the cage. For interest, I could analyse a fresh oil sample for zinc to get the zero condition...It is a very exciting topic ;-)
#279
Rennlist Member
70ppm is bad even for the first used oil sample out of a rebuilt engine. On a healthy engine copper levels should be a very low single digit figure.
#280
Tanks for your answer, I completely agree and will trend it, this is the only thing I can do for now. But there are no other values that bother me, copper is the "only" one. As mentioned, the explanation/root cause would be the brass-cage of the new IMS; the engine was rebuilt by Cartronics who use the Hartech-method.
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8x57IRS (03-23-2022)
#283
Another data point. 80% highway miles with a couple of extended Italian tuneups. Not to be too much a fanboy but the DI40 is some kinda magic juice.
#284
RL Community Team
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tapcon (04-10-2022)