Mobil 1 0W-40, 5,600 miles, 2008 Porsche Cayman S

[kang]

Here's my second analysis. It looks good, nothing to worry about. The fuel dilution is gone, it was either caused by short trips (didn't have a chance to burn off) or my rings have finally seated.

What's copper from? Bearings?

Here's the discussion on the original sample:
http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2335002

Code:


OIL M1 0W-40 M1 0W-40

MILES IN USE 2,600 5,615

MILES 14,600k 23,000k

SAMPLE TAKEN 7/23/11 3/10/13



ALUMINUM 4 4

CHROMIUM 0 1

IRON 11 15

COPPER 15 14

LEAD 4 4

TIN 2 1

MOLYBDENUM 90 87

NICKEL 1 0

MANGANESE 0 1

SILVER 0 0

TITANIUM 0 1

POTASSIUM 0 2

BORON 180 156

SILICON 6 6

SODIUM 17 13

CALCIUM 3010 3165

MAGNESIUM 16 21

PHOSPHORUS 928 905

ZINC 1178 1041

BARIUM 0 0



INSOLUBLES TR TR

WATER 0 0

FLASHPOINT ºF 335 420

SUS VIS 210ºF 71.4 68.1

cSt @ 212ºF 13.31 12.46

FUEL % 2.0
ANTIFREEZE % 0 0
[/quote]

 

[Saab9000]

Copper is usually from bearings, but I wouldn't worry about it, your copper and iron are right about at universal averages according to the specs that Blackstone gave at my last UOA for my 2000 Boxster.

When I bought my car used Boxster PO did 10k mile oil changes. First UOA showed very high iron, around 30 and slightly elevated copper. I did 3 short interval changes, around 1k miles each, to flush out the motor and now on an OCI of about 3-4k miles, iron and copper are down to 9 and 6.

 

[SteveSRT8]

Copper in a new engine is unlikely to be from bearings! Sheesh.

Assembly lubes, sealants, etc. May throw those numbers for a bit until you clear all that junk out of your new engine.

Good report.

 

[cchase]

Copper is probably from an oil cooler.

 

[2oldtommy]

Copper can also be from piston pin bushings. Not to worry! FWIW--Oldtommy

 

[kang]

Here's the screen shot from Blackstone.

I ask about copper because it's double the universal average. Not that it's a problem, just curious. This car has 23,000 miles and has had 5 oil changes, I would hope there is no leftover assembly lube or anything left in there!

 

[SteveSRT8]

Note that we run a fleet of trucks. I have had new GM v8's throw high copper numbers for at least three OCI's, so wait until you get a bit more mileage before the engine gets blamed.

Probably nuttin', like Chase said above even an oil cooler can have copper tubes in it that skew the results...