Got a 2008 Honda accord with 115,000 miles on it. Oil has 11,800 on oil and copper shows 11. Avg is 3 at 6700 miles.
What do you think?
What do you think?
Copper on uoa
- Thread starter lubedude13
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If you have the Lab test please post so we all can make heads or tails out of it. There could be "other" factors.
Jeff
Jeff
I assume no oil cooler that you know of?
Lead high?
Silicon?
Please post entire UOA and prev. ones if any.
Lead high?
Silicon?
Please post entire UOA and prev. ones if any.
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Civics dont have oil coolers unless one was added on. There is allot of info being left out here. Oil used? weight? Posting of the UOA would be of great benefit.
Jeff
Jeff
Many modern engines don't have lead/copper/steel bearings anymore. But on the ones that do, you see lead go high before the wear gets to the copper layer. I usually suspect a cooler, or even oil gauge capillary tube, before I suspect bearing wear these days.
How can I post an image
I really don't see a problem here, copper is not that high.
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You have almost 12,000 miles on the oil and the copper is 11 parts per million? I don't think thats that high. If it were 50 that might be different.
P.S. Have you used any rtv gasket sealer in the engine or intake anywhere? Some high temp rtv has copper in it. ( Ultra copper rtv by permatex).
P.S. Have you used any rtv gasket sealer in the engine or intake anywhere? Some high temp rtv has copper in it. ( Ultra copper rtv by permatex).
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It's one of my customers so I'm not sure. I know in the past 30k he hasn't.'
Did you see anything in the oil drain pan or oil filter after the oil change?
No
Again there's a Blackstone comment I don't understand. "Isn't a metal that normally tracks with use."
Whiskey Tango Foxtrot? That would imply that they think copper reaches some equilibrium level in the oil and then doesn't keep increasing. I just don't see that- if the oil is exposed to copper, its going to leach more and more copper into solution over time and the level will go up. Unless the solubility of copper in oil is below 11 ppm. Maybe that's something that they do see, but I certainly can't think of a physical mechanism behind it.
Whiskey Tango Foxtrot? That would imply that they think copper reaches some equilibrium level in the oil and then doesn't keep increasing. I just don't see that- if the oil is exposed to copper, its going to leach more and more copper into solution over time and the level will go up. Unless the solubility of copper in oil is below 11 ppm. Maybe that's something that they do see, but I certainly can't think of a physical mechanism behind it.
I would cut your OCI to 10k max.
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