Just bought this car used and of course HAD to do an analysis
. From the service history it appears to have followed BMW's 15000 OCI per the oil computer, having been in at 15 & 30K with no other indications of oil changes. Owner apparently took very good care of it and did not seem to push it very hard. Still has original rotors and pads which also indicates easy/highway driving as these items usually get replaced sooner than this.
Particulars:
Milage on vehicle-43221
Oil-BMW High Performance Synthetic, aka: Castrol Softec TXT 5W-30
Milage on oil-12580
Make-up oil-none that I could find (Owner would have probably gone back to the dealer for this and there is no indication on service history)
Oil filter-OE
Air filter-OE, changed at last OCI
Blackstone Labs with Terry's superb intepretation.
Aluminum-7
Chromium-0
Iron-11
Copper-13
Lead-2 (!)
Tin-2
Moly-103
Nickel, Manganese, Silver, Ti-0
Potassium-3
Boron-31
Silicon-6
Sodium-3
Calcium-2705
Magnesium-13
Phosphorus-776 (SM cap anyone?)
Zinc-888
Barium-0
210 visc-74.2
Flash-380
Fuel->0.5
Glycol-0.0
H2O-0.0
Insolubles-0.3
TBN-1.2
Ok, it thickened up to a 40wt, but this oil seems to start out at around 67, so not TOO bad for this kinda milage. Don't know if the K and Na traces have anything to do with it but I'm supposing not with no glycol present. TBN shows end of service, but oil adds seem to be rather robust to allow it to go this distance though. Cu is a bit elevated but, again, taking the milage into consideration. Insolubles show good filtration and there wasn't a trace of "chunkiness" when drained. Probably safe to say that this oil wasn't sludged. Going to start an ARX cycle and then fill with GC.
Comments? Please fire away
Particulars:
Milage on vehicle-43221
Oil-BMW High Performance Synthetic, aka: Castrol Softec TXT 5W-30
Milage on oil-12580
Make-up oil-none that I could find (Owner would have probably gone back to the dealer for this and there is no indication on service history)
Oil filter-OE
Air filter-OE, changed at last OCI
Blackstone Labs with Terry's superb intepretation.
Aluminum-7
Chromium-0
Iron-11
Copper-13
Lead-2 (!)
Tin-2
Moly-103
Nickel, Manganese, Silver, Ti-0
Potassium-3
Boron-31
Silicon-6
Sodium-3
Calcium-2705
Magnesium-13
Phosphorus-776 (SM cap anyone?)
Zinc-888
Barium-0
210 visc-74.2
Flash-380
Fuel->0.5
Glycol-0.0
H2O-0.0
Insolubles-0.3
TBN-1.2
Ok, it thickened up to a 40wt, but this oil seems to start out at around 67, so not TOO bad for this kinda milage. Don't know if the K and Na traces have anything to do with it but I'm supposing not with no glycol present. TBN shows end of service, but oil adds seem to be rather robust to allow it to go this distance though. Cu is a bit elevated but, again, taking the milage into consideration. Insolubles show good filtration and there wasn't a trace of "chunkiness" when drained. Probably safe to say that this oil wasn't sludged. Going to start an ARX cycle and then fill with GC.
Comments? Please fire away