OLM was at 19%. Filter was NAPA Gold 7060. Filter dissection is here. For those unfamiliar with the L76 V8, it is the same 6.0L aluminum block V8 used in the Pontiac G8 GT. Blackstone Comments: Thanks for the notes on the new radiator with an integrated oil cooler. That could be why copper (brass/bronze parts) and lead were a bit higher than universal averages, which show typical wear for this type of GM engine after about 7,000 miles of oil use. Lead might also show some bearing wear, or it could just be a temporary particle streak too. In any case, we'll look for it to come down some next time. No contamination was found and the viscosity was in the proper range. A TBN of 3.2 shows lots of active additive left. Try 10,000 miles next time.
I'm not worried about the copper and the lead due to the installation of the new radiator with integral oil cooler. Guessing the lead is from solder. Next UOA will tell. The NAPA Gold filter did a fine job.
MI on Oil 9,074 MI on Unit 125,974 Sample Date 06/15/14 Make Up Oil Added .5 quarts Oil Type Pennzoil Ultra SN 5w30 Universal Avgs ALUMINUM 3 4 CHROMIUM 1 1 IRON 11 23 COPPER 53 48 LEAD 18 8 TIN 0 1 MOLYBDENUM 56 73 NICKEL 1 1 MANGANESE 1 1 SILVER 0 0 TITANIUM 2 2 POTASSIUM 2 2 BORON 33 51 SILICON 5 10 SODIUM 4 37 CALCIUM 2113 2009 MAGNESIUM 29 335 PHOSPHORUS 659 738 ZINC 808 865 BARIUM 0 0 SUS Viscosity @ 210°F 58.8 cSt Viscosity @ 100°C 9.88 Flashpoint in °F 410 Fuel % <0.5 Antifreeze % 0.0 Water % 0.0 Insolubles 0.1 TBN 3.2