2nd oil analysis came back, some copper again
 

http://www.oilanalysis.net/CommonFil...I=DABWIN_61966

227 ppm on 52,000 km

changed oil and filters

21 ppm on 11,000 km

gone from a part of copper every 229 km to 524 km.

I still don't like it. Every single UOA I look at copper is below 1. 1 PPM / 40,000 km or something like that.

Only thing I can do is do another analysis around 30k. If copper is still going up at a regular rate, at this point it is becoming a regular wear metal and we can eliminate anything irregular like gaskets or oil cooler.

At that point, the engine would probably have to come apart.

Km on truck - over all?

If it's a CAT - it's part of the oil cooler wearing in - they have a little sheet on it avail at CAT dealers.

Your PPM don't really scare me that parts per MILLION. She starts hitting 700-1000 then I would get nervous. Any other elements? Lead or Iron?

Found your other post - I guess it does bear looking into then. Oil cooler is 3 years old - then maybe - what I was talking about usually shows around the 3rd oil change on new CAT engine.

Re: 2nd oil analysis came back, some copper again
 

allan5oh I've been watching with interest concerning your elevated copper levels. I can't see how any gasket material or contents of an oil cooler could result in a elevated copper count, they are not "wear" points.

Seems you mentioned somewhere that you were using some kind of oil other than commonly used. Might I sudgest that perhaps it has something to do with the formulation of the oil? Sending in a sample of new oil would reveal that if it's so.

The only thing I think of that might show up as copper is a defective water pump seal. Usually made of a ceramic material against a stainless or brass wear surface, but that's pushing it. It's more likely to show up as coolant in the oil.

bearing base material is usually copper, I didnt see the other thread so whats the whole story?

Using shell rotella T, considering switching to synthetic. But if I'm not 100% sure on the engine, there's no point switching to something more expensive.