Originally Posted By: Rlc2500HD
Aluminum 3
Chromonium 1
Iron 46
copper 364
lead 2
tin 2
moly 0
nickel 1
maganese 1
silver 1
titanium 0
potassium 20
boron 1
silicon 8
sodium 4
calcium 3793
manesium 10
phosphorus 1228
zinc 1652
barium 0
sus visc 70.7
cst visc 13.14
flashpoint 445
Antifreeze 0
Water 0
fuel insolubles 0.3
CHRIS: Universal averages show normal wear for the 6.6L Duramax after 6,600 miles of oil use. Your
15W/40 oil was in use 10,255 miles and we found iron (steel parts) and copper (brass/bronze parts) reading
high, with copper at a whopping 364 ppm. That copper can be from the turbo, engine bushings or an oil
cooler. This much metal in the oil makes it too abrasive for extended use, and long oil runs like this one may
cause more problems down the road. We suggest a 3,000-mile oil change and check back to monitor wear.
Caution: copper!
Not sure where 20 ppm K comes from. Na and Si are low, so it doesn't appear to be dirt. Could be the beginning or end of a coolant leak.
Is this your first analysis? Is this your first use of AME? How long was the oil in the engine?
Could be the copper cleaning effect we have seen before. Oil cooler and such. If that's the case, then nothing to worry about, Cu will drop.
Tell us a bit more.