2001 GMC Sierra 106,583 miles when tested. 17,082 on oil w/three filters when collected and tested. I’ve used AMSOIL ever since I purchased the truck with 4400 miles. Here are the results: NORMAL (as reported)
IRON 8
CHROMIUM 0
LEAD 17
COPPER 131
TIN 0
ALUMINUM 3
NICKLE 0
SILVER 1
SILICON 12
BORON 1
SODIUM 0
MAGNESIUM 16
CALCIUM 3917
BARIUM 0
PHOSPHORUS 1135
ZINK 1426
MOLYBENUM 0
TITANIUM 0
VANDIUM 0
POTASSIUM 0
FUEL (%vol) <1
VIS @40c cSt N/A
VIS @100c cSt 13.24
WATER (%vol) 0
SOOT/SOLIDS (%wt) 0.1
COOLANT: NO
TBN 7.01
OXID 2.0
NITR 4.0
F-SOOT 0.05
The test indicated the copper was high and possibly from lube oil cooler.
How does this look to the experts out there?