Comments from my report...
Thanks for the notes. Idling before collecting the sample didn't result in any fuel dilution coolant is present either, and the slightly thin viscosity isn't much to worry about. The majority of wear metals are in good shape relative to universal averages, which show typical wear for these big 454 engines after a similar interval of ~4,000 miles. Copper is high in comparison, but it might not be from brass/bronze wear. Copper can come from parts like an oil cooler, and it's also a common finding after repairs. The TBN is strong at 6.1
The copper on my report was 72. This is normal for the 454 BBC due to the large oil cooler size. The copper reading differs overtime with each report (up/down).
1994 Southwind Storm 28ft 7.4L TBI P-32
68,285 miles and counting...as of 01/13/2021