[W///]

Originally Posted by checkmate

Do tell...I'm just curious how copper level's lead to a good/bad report. Thanks

I'm not a pro by any means, but from what I've read here, the rod bearings are coated with lead and copper.



If the rod bearing is really worn down like int he picture, it'll show up as high copper level. If you look to the left, that other set is also worn, but not all the way down to the copper yet.

In summary, usually lead and copper should go hand in hand if you have rod bearing issues. But if the copper is way high, then you really are in the critical area.

I'd recommend either going to a lighter oil, or if you want to stick to TWS for warranty reasons, lower interval to 7500mi. Just keep doing the lab tests and keep an eye out on those 2 items.