Nothing new here, just posting an update. I had to change early to replace my oil filter housing gasket.
Also, the oil filter housing gasket was changed at the time this sample was taken so may show something on the next UOA, not this one as indicated in the comments below.
Link to previous UOA HERE
Code
COMMENT:Thanks for the info. We'll often see silicon read on the high side temporarily when new gaskets
are installed, but that's not the case for your BMW. Silicon held to just 3 ppm, which is okay with us since
there are also harmful sources of silicon (dirt/dust) that can be ruled out. The rest of the results continue to
show that there's a healthy engine under the hood. Metals are trending steadily and at levels that compare
well against averages. No fuel was found this time, and the TBN is good and high at 3.9, so you'd be fine
going 7,500 miles with the next oil.
MAKE/MODEL: BMW 3.0L (N55) I-6 Turbo
OIL Edge 0w-40 Edge 0w-40 Edge 0w-40 M1 0w-40 M1 0w-40 BMW 5w30 M1 0w-40 BMW 5w30
MILES IN USE 5474 7181 7323 6111 6000 7630 5520 5150
MILES 82372 76898 69717 62394 56283 50284 40660 35140
SAMPLE TAKEN 7/30/2019 9/29/2018 9/12/2017 7/9/2016 10/12/2015 3/31/2015 5/1/2014 11/16/2013
ALUMINUM 5 5 7 5 8 19 6 8
CHROMIUM 1 1 1 1 1 1 1 1
IRON 31 33 37 7 30 50 24 21
COPPER 4 5 5 3 4 6 3 3
LEAD 0 0 0 0 0 0 0 1
TIN 0 1 1 1 2 0 0 3
MOLYBDENUM 1 3 12 80 102 151 104 140
NICKEL 0 0 1 0 1 1 1 0
MANGANESE 1 2 1 1 2 3 1 1
SILVER 0 0 0 0 1 0 0 0
TITANIUM 45 45 40 0 0 0 0 0
POTASSIUM 6 7 7 6 16 14 2 2
BORON 37 35 34 135 136 75 151 61
SILICON 3 4 5 4 4 6 4 3
SODIUM 7 5 6 5 7 9 3 6
CALCIUM 2125 2154 1885 2865 3068 2397 3239 2321
MAGNESIUM 31 84 396 19 21 18 19 17
PHOSPHORUS 792 839 857 901 898 935 989 850
ZINC 919 977 996 1054 1150 1112 1176 976
BARIUM 0 0 0 0 0 0 0 0
SUS VIS 210F 65.8 65.0 68.6 69.2 70.2 63.2 68.5 64.4
cSt @ 100CF 11.83 11.61 12.59 12.75 13.01 11.12 12.56 11.44
FLASHPOINT F 395 385 410 400 390 395 415 420
Fuel
Antifreeze 0.0 0.0 0.0 0 ? 0 0 0
WATER 0.0 0.0 0.0 0 0 0 0 0
INSOLUBLES 0.1 0.2 0.3 0.2 0.2 0.3 0.2 0.4
TBN 3.9 2.8 3.8 4.2 5.6 3.7 5.6 5.3
Also, the oil filter housing gasket was changed at the time this sample was taken so may show something on the next UOA, not this one as indicated in the comments below.
Link to previous UOA HERE
Code
COMMENT:Thanks for the info. We'll often see silicon read on the high side temporarily when new gaskets
are installed, but that's not the case for your BMW. Silicon held to just 3 ppm, which is okay with us since
there are also harmful sources of silicon (dirt/dust) that can be ruled out. The rest of the results continue to
show that there's a healthy engine under the hood. Metals are trending steadily and at levels that compare
well against averages. No fuel was found this time, and the TBN is good and high at 3.9, so you'd be fine
going 7,500 miles with the next oil.
MAKE/MODEL: BMW 3.0L (N55) I-6 Turbo
OIL Edge 0w-40 Edge 0w-40 Edge 0w-40 M1 0w-40 M1 0w-40 BMW 5w30 M1 0w-40 BMW 5w30
MILES IN USE 5474 7181 7323 6111 6000 7630 5520 5150
MILES 82372 76898 69717 62394 56283 50284 40660 35140
SAMPLE TAKEN 7/30/2019 9/29/2018 9/12/2017 7/9/2016 10/12/2015 3/31/2015 5/1/2014 11/16/2013
ALUMINUM 5 5 7 5 8 19 6 8
CHROMIUM 1 1 1 1 1 1 1 1
IRON 31 33 37 7 30 50 24 21
COPPER 4 5 5 3 4 6 3 3
LEAD 0 0 0 0 0 0 0 1
TIN 0 1 1 1 2 0 0 3
MOLYBDENUM 1 3 12 80 102 151 104 140
NICKEL 0 0 1 0 1 1 1 0
MANGANESE 1 2 1 1 2 3 1 1
SILVER 0 0 0 0 1 0 0 0
TITANIUM 45 45 40 0 0 0 0 0
POTASSIUM 6 7 7 6 16 14 2 2
BORON 37 35 34 135 136 75 151 61
SILICON 3 4 5 4 4 6 4 3
SODIUM 7 5 6 5 7 9 3 6
CALCIUM 2125 2154 1885 2865 3068 2397 3239 2321
MAGNESIUM 31 84 396 19 21 18 19 17
PHOSPHORUS 792 839 857 901 898 935 989 850
ZINC 919 977 996 1054 1150 1112 1176 976
BARIUM 0 0 0 0 0 0 0 0
SUS VIS 210F 65.8 65.0 68.6 69.2 70.2 63.2 68.5 64.4
cSt @ 100CF 11.83 11.61 12.59 12.75 13.01 11.12 12.56 11.44
FLASHPOINT F 395 385 410 400 390 395 415 420
Fuel
Antifreeze 0.0 0.0 0.0 0 ? 0 0 0
WATER 0.0 0.0 0.0 0 0 0 0 0
INSOLUBLES 0.1 0.2 0.3 0.2 0.2 0.3 0.2 0.4
TBN 3.9 2.8 3.8 4.2 5.6 3.7 5.6 5.3