I was worried about iron again, but I had a bit more Potassium this time. I'm thinking (hoping) it's the oil filter housing gasket allowing cross contamination which is common on these engines. I ordered up a new gasket and will replace this weekend.
Thread to last report is HERE
Code:
We're starting to see just a little more potassium in the oil. Normally we wouldn't make much out of the fact
that an element increased by 2 ppm. But since the element we're talking about is potassium and potassium can be a
sign of coolant, we have to at least mention it. It sure doesn't look like a problem, with wear levels reading just as good
as usual (and better than average). If potassium shows coolant, it's such a slight leak that neither you nor a mechanic
would see it. The TBN is strong, so try going back to 7,000 miles next time and we'll monitor it for you.
MAKE/MODEL: BMW 3.0L (N55) I-6 Turbo
OIL M1 0w-40 BMW 5w30 M1 0w-40 BMW 5w30
MILES IN USE 6000 7630 5520 5150
MILES 56283 50284 40660 35140
SAMPLE TAKEN 10/12/2015 3/31/2015 5/1/2014 11/16/2013
ALUMINUM 8 19 6 8
CHROMIUM 1 1 1 1
IRON 30 50 24 21
COPPER 4 6 3 3
LEAD 0 0 0 1
TIN 2 0 0 3
MOLYBDENUM 102 151 104 140
NICKEL 1 1 1 0
MANGANESE 2 3 1 1
SILVER 1 0 0 0
TITANIUM 0 0 0 0
POTASSIUM 16 14 2 2
BORON 136 75 151 61
SILICON 4 6 4 3
SODIUM 7 9 3 6
CALCIUM 3068 2397 3239 2321
MAGNESIUM 21 18 19 17
PHOSPHORUS 898 935 989 850
ZINC 1150 1112 1176 976
BARIUM 0 0 0 0
SUS VIS 210コF 70.2 63.2 68.5 64.4
cSt @ 212コF 13.01 11.12 12.56 11.44
FLASHPOINT コF 390 395 415 420
Fuel
Antifreeze ? 0 0 0
WATER 0 0 0 0
INSOLUBLES 0.2 0.3 0.2 0.4
TBN 5.6 3.7 5.6 5.3
Thread to last report is HERE
Code:
We're starting to see just a little more potassium in the oil. Normally we wouldn't make much out of the fact
that an element increased by 2 ppm. But since the element we're talking about is potassium and potassium can be a
sign of coolant, we have to at least mention it. It sure doesn't look like a problem, with wear levels reading just as good
as usual (and better than average). If potassium shows coolant, it's such a slight leak that neither you nor a mechanic
would see it. The TBN is strong, so try going back to 7,000 miles next time and we'll monitor it for you.
MAKE/MODEL: BMW 3.0L (N55) I-6 Turbo
OIL M1 0w-40 BMW 5w30 M1 0w-40 BMW 5w30
MILES IN USE 6000 7630 5520 5150
MILES 56283 50284 40660 35140
SAMPLE TAKEN 10/12/2015 3/31/2015 5/1/2014 11/16/2013
ALUMINUM 8 19 6 8
CHROMIUM 1 1 1 1
IRON 30 50 24 21
COPPER 4 6 3 3
LEAD 0 0 0 1
TIN 2 0 0 3
MOLYBDENUM 102 151 104 140
NICKEL 1 1 1 0
MANGANESE 2 3 1 1
SILVER 1 0 0 0
TITANIUM 0 0 0 0
POTASSIUM 16 14 2 2
BORON 136 75 151 61
SILICON 4 6 4 3
SODIUM 7 9 3 6
CALCIUM 3068 2397 3239 2321
MAGNESIUM 21 18 19 17
PHOSPHORUS 898 935 989 850
ZINC 1150 1112 1176 976
BARIUM 0 0 0 0
SUS VIS 210コF 70.2 63.2 68.5 64.4
cSt @ 212コF 13.01 11.12 12.56 11.44
FLASHPOINT コF 390 395 415 420
Fuel
Antifreeze ? 0 0 0
WATER 0 0 0 0
INSOLUBLES 0.2 0.3 0.2 0.4
TBN 5.6 3.7 5.6 5.3
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