Ignore the "fluid added" quantity. Consumption has jumped to ~1 L / 1500 mi, which is roughly where it was when I bought the car with leaking valve cover gaskets. I fixed those (which cut consumption in half) and haven't noticed other leaks, though I have noticed what look like traces of oil on some of my spark plugs (pic attached). Wouldn't mind some feedback on that.
I replaced the oil separators preventatively when I changed the oil. Was going to do the PCV valve as well but chickened out. Had a BMW crankcase pressure test done recently and was right in the middle of the normal range, though that was only at idle.
EDIT: Fuel dilution was originally reported at 2.1%. Seemed high, so I asked them to re-run that test to verify. New number is 1.6%. Hoping that's the real one!
Wear Metals
Iron - 7
Chromium - 0
Nickel - 0
Aluminum - 3
Copper - 2
Lead - 0
Tin - 1
Cadmium - 0
Silver - 0
Vanadium - 0
Particle Quantifier (PQ) Index - 12
Contaminant Metals
Silicon - 7
Sodium - 4
Potassium - 1
Multi-Source Metals
Titanium - 0
Molybdenum - 52
Antimony - 1
Manganese - 0
Lithium - 0
Boron - 53
Additive Metals
Magnesium - 23
Calcium - 2458
Barium - 0
Phosphorus - 824
Zinc - 935
Other Contaminants
Fuel Dilution - 1.6% (GC)
Soot - <0.1% by vol.
Water - <0.1% by vol. (FTIR)
Fluid Properties
Viscosity @ 100ยบ C - 18.3 cSt
TBN - 4.44
Oxidation - 12
Nitration - 11
Attached Files
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