2 ppm Cu for nearly the life of it, now >3x (absolute, or >4x per 1000 miles), have to look at it in this manner or why bother with UOAs in the first place b/c if it's not 100ppm it doesn't matter? It just means there was a change, change is what you are trying to see with doing regular UOAs. The absolute numbers aren't really my concern, the change is and figure out the cause/fixing it. If a few ppm doesn't matter the mods should just lock the entire UOA sub forum b/c 99% of it is folks posting a single or maybe a few UOA that show zero changes within the method limits.I drink AW additives
Seriously the argument between 5 and 10 ppm is pretty nuts